The first watches for the pilots of the “new weapon” SLC were delivered in the middle of the 1930’s by Guido Panerai & Figlio to the Commando del 1° Gruppo Sommergibili of the Royal Italian Navy. According to the timeline of the development of the top secret slow running torpedos (siluro a lenta corsa, short: SLC) by the inventors Teseo Tesei and Elios Toschi, waterproof and luminous instruments for the pilots were necessary to carry out proper exercises and to control the SLC in depth and darkness.

The chapters I and II, dedicated to the first watches for underwater use (Ref. 2533 and 3646) take the readers of our book “The References” 1930’s-1940’s into these early years. Teseo Tesei and Elios Toschi’s ideas became real. But strategic decisions after the Italo-Ethiopian War stopped the secret SLC project. The tests with these small weapons were archived and the Royal Italian Navy focused their interest in huge battleships, cruisers and destroyers.

The SLC project was re-started by the 1st Flottiglia MAS in 1939 at the advent of the Second World War. With the first missions of the Mezzi d’Assalto carried out from August 1940 onwards, the demand for skilled operators as well as new equipment – and more instruments for the operators – grew fast. An early Ref. 3646 / Type A, dated to April 1940, is featured in chapter II.I followed by the timeline of the missions carried out by the operators of the Decima Flottiglia MAS, the special commandos of the Royal Italian Navy.

The photo shows page 96 of “The References” with a historic photo from June 1940: The two inventors of the SLC, Teseo Tesei and Elios Toschi, Alberto Franzini and Gino Birindelli above their co-pilots stand together with a royal visitor: Principe Aimone di Savoia Aosta, Duca di Spoleto –  just a few weeks before the first missions of the new weapon SLC were about to write naval history.

Read more about “The birth of a legend – the first Panerai watches (1935-1939)” in chapter I, followed by the timeline of the missions during the Second World War in chapter II.I – more information on the historic content in our “The References” book set with a total of 1392 pages can be found here. Read about the featured watches from Guido Panerai & Figlio in the first and second volume here.

Watches from Guido Panerai & Figlio are deeply connected to the history of the Royal Italian Navy during the Second World War. In our book “The References” we have included an overview of the missions of the “Decima” aside the legendary watches, which were an important part of the units of the underwater (“Mezzi Subacquei” / “Gamma” frogmen and SLC) and surface (“Mezzi di Superficie” / explosive boats) special forces of the Decima MAS (“Mezzi d’Assalto”).

After the disaster at Malta in July 1941 (“Operazione Malta 1”), the Decima MAS was restructured. Capitano di Fregata Ernesto Forza became the new commander of the Decima MAS. The underwater division was given the name of the fallen inventor of the SLC, Teseo Tesei, now commanded by Junio Valerio Borghese. The surface division was given the name of the fallen commander of the Decima, Vittorio Moccagatta, now commanded by Salvatore Todaro (the photo below shows a historical chart of the new structured Mezzi d’Assalto as of October 1941).

Chapter I and II of the first volume (1930’s-1940’s) carry the history of a new weapon – the SLC slow running torpedo, called “maiale” – and the men who trusted on the watches from Guido Panerai & Figlio during their dangerous missions in deep and darkness of the mediterranean sea. Because of the significance of the fascinating history behind these watches, we have dedicated our new book “The References” to the inventors of the SLC, Teseo Tesei and Elios Toschi.

Chapter II of “The References” features some of the rarest Panerai watches owned by famous and high decorated Italian veterans. The first watch of the Reference 3646 / Type A, featured in chapter II.I, belonged to Admiral Ernesto Notari. He was awarded with the Silver Medal for Gallantry at War (M.A.V.M.) for the mission B.G.6 in May 1943.

The documentation of the watch (see above page 70-71) and the history of Ernesto Notari, including a summary of the “Mezzi d’Assalto” missions until 8 September 1943 can be read from page 58 to 153 in chapter II.I.

Chapter II.II, about the watches of the Reference 3646 / Type B, features the watch of the legendary “Gamma” frogman Luigio Ferraro. He was awarded with the Gold Medal for Gallantry at War (M.O.V.M.) for his “Stella” missions in the eastern part of the mediterranean sea in 1943.

The documentation of the watch (see above page 190-191) and the history of Luigi Ferraro can be read from page 190 to 225 in chapter II.II.

A watch of the Reference 3646 / Type C which belonged to the SLC pilot Licio Visintini is featured in chapter II.III. Visintini took part in several missions against the allied fleet in Gibraltar. After surviving from mission B.G.3 and B.G.4 in 1941, Visintini returned undercover to Gibraltar in June 1942 where he built the core of the “Orsa Maggiore” on board the tanker Olterra – the hidden base for the SLC units of the “Decima” in the bay of Gibraltar. Mission B.G.5 turned into a “mission with no return” for Licio Visintini in December 1942…

The documentation of the watch (see above page 352-353) and the history of Licio Visintini can be read from page 350 to 397 in chapter II.III.

Information on “The References” 1930’s-1940’s (first volume) can be found here.

Enjoy reading!
[Ralf Ehlers & Volker Wiegmann]

During the winter of 1940-1941 the human torpedo attacks were suspended, at least until the following spring. A detachment of MT explosive boats was based in the Dodecanese, where it trained under the command of Vittorio Moccagatta on the island of Leros with the objective of attacking Souda Bay and the British traffic to Greece.

Vittorio Moccagatta was ordered back to Italy on 23 January 1941, where he became the commander of the 1st MAS Flotilla in La Spezia. His suggestions to the Italian naval commando assumed in the result that the 1st MAS Flotilla became the 10th MAS Flotilla – the Decima MAS – on 15 March 1941, which was divided into two divisions from that time:

The surface division – Mezzi di Superficie – under the command of Capitano di Corvetta Giorgio Giobbe with a fleet of various explosive boats (category MT, MTM shown by the historic sketches on the left, MTR, MTS, MTMS, SMA, MTL) and motorboats for sabotage operations.

The underwater division – Mezzi Subacquei – under the command of Capitano di Corvetta Junio Valerio Borghese operated the diving School in Livorno, the SLC training base at Bocca di Serchio, the remaining transport submersibles Scirè and Ambra and the frogmen of the “Gruppo Gamma”. On a side note, in early 1941, the two initial transport submersibles for SLC devices, Iride and Gondar, were already lost with the failure of „Operazione G.A.1“ and „Operazione G.A.2“ in August and September 1940.

On 26 March 1941, the surface division – Mezzi di Superficie – of the Decima MAS achieved initial successes: six MT-type explosive boats broke through the blockades in Souda Bay (Crete, see historic map on the left) damaging the heavy cruiser York and the tanker Pericles.

During the night, the servicemen Luigi Faggioni (commander), Angelo Cabrini, Tullio Tedeschi, Alessio De Vito, Lino Beccati and Emilio Barberi) were transported to the target area aboard the destroyers Crispi and Sella. These two destroyers were equipped with electrically powered cranes for placement of the MT-type explosive boats on the water, which was carried out in just a few minutes, ten miles from Souda’s entrance, at 2330 hours on 25 March 1941. Unnoticed by the enemy, the MT-type explosive boats managed to cross three barricades and reached their targets in the early hours of the morning of 26 March 1941.

Two MT-type explosive boats attacked the York (the pilots abandoned their boats 80 meters before hitting the ship, see historic photos on the left). Another two MT-type explosive boats attacked the Pericles. Commander Faggioni tried to hit the Coventry but his boat missed the cruiser and exploded on the coast. The sixth MT-type explosive boat missed its target too, but remained intact and was captured by the British. All six pilots of the explosive boats survived the attack and became POW.

Read more about the timeline of the missions during the Second World War in chapter II.I on page 106-146. Vittorio Moccagatta is featured on page 112-113, the attack in Souda Bay is featured on page 108-109.

Enemy ships in the harbour of Gibraltar have been in the sight of the Royal Italian Navy since September 1940. After several attacks by “Gamma” frogmen and SLC units, ideas to build a secret base of the Decima MAS were realized in the second half of the year 1942. Convoy ships for the United States were beginning to arrive in quantity. The numbers of potential targets at anchor in the Bay of Algeciras were growing almost daily.

Earlier in 1942, a base for the Decima MAS “Gamma” frogmen was established in the Villa Carmela near La Linea from where several missions were carried out against British merchant ships (see page 126-131 / chapter II.I). During the months of shaping Villa Carmela into an advanced base, the idea for a bigger and much more effective operation had taken form in the mind of Licio Visintini, one of the SLC pilots of the mission B.G.4 in September 1941 (see page 374-381 / chapter II.III) which was carried out from the submarine Scirè.

Before the new base was ready for action, each attack at Gibraltar had required a long submarine voyage, air and land transportation of the attack-teams, the shipping of supplies and weapons, arrangements for rendezvous, an approach by submarine, and finally the task of smuggling the survivors back to Italy thru neutral Spanish territory.

Licio Visintini’s idea became real with turning the anchored ship Olterra inside the pier of Algeciras into a secret base for SLC missions. Visintini and further technical specialists replaced the original crew of the Olterra. An assembly workshop for the SLC devices (which arrived in sections, declared as spare parts for the damaged ship) was established in the hull. A portside cabin of the Olterra became the observation post with an excellent view of Gibraltar harbour. Finally, a folding door on the port side bow (see coffee table shot of page 386-387 /chapter II.III) became the exit door for the SLC units below waterline to reach their targets – and to return back into the hull of the Olterra. After months of intensive work in total secrecy, the inconspicious ship Olterra was turned into a Trojan Horse – “il cavallo di Troia” – and six men were ready for action with their SLC devices.

The Olterra was starting point of the following SLC missions against enemy ships in the bay of Algeciras / Gibraltar harbour: B.G.5 (7/8 December 1942), B.G.6 (7/8 May 1943) and  B.G.7 (3/4 August 1943). Our book “The References” 1930’s-1940’s features two Ref. 3646 watches which were used during these missions.

The Ref. 3646 / Type A “Radiomir Panerai” watch of Ernesto Notari is featured in chapter II.I (page 58-91 / see coffee table shot on the left) – more on this watch and its history can be found here. The Ref. 3646 / Type C “Radiomir Panerai” watch of Licio Visintini is featured in chapter II.III (page 350-367) – more on this watch and the history behind can be found here. The new “The References” books can be ordered only in our bookstore.

Enjoy reading!
[Ralf Ehlers & Volker Wiegmann]

…but alone – without the SLC pilot who used it on his wrist during the mission B.G.5 in December 1942: Licio Visintini.

Born 1915 and enterred the Royal Italian Navy in 1933, Licio Visintini took part in several missions against the allied fleet in Gibraltar as a member of the Decima MAS. In 1941 Visintini was promoted to Tenente di Vascello. After surviving from SLC missions B.G.3 (May 1941) and B.G.4 (September 1941), carried out by the transport submersible “Scirè” under the command of Junio Valerio Borghese, Visintini returned to Gibraltar undercover in June 1942 where he built the core of the “Orsa Maggiore” on board the tanker Olterra – the hidden base for the SLC units in the bay of Gibraltar.

According to legend, Visintini’s „Radiomir Panerai“ was returned to his mother after the end of the Second World War by his former enemy, Lieutenant „Buster“ Crabb (head of the Underwater Working Party in Gibraltar). The return of personal items to relatives showed a great respect that the combatants on different sides had for one another. Crabb, who was himself an experienced diver serving the British Navy, knew from experience all too wellt he level of courage and determination that was neccessary to carry out missions of this kind. Before Visintini’s mother died, she gave the watch to Vittorio Stradi, her son’s best friend. Vittorio Stradi was a „Gamma“ frogman in the Second World War. Fourty years later he passed the watch to his friend Isidoro Mario Nardin, who was also a member of the „Gamma“ frogmen during the Second World War.

To commemorate the order of ownership, the three names were inscribed for posterity on the caseback, as shown on page 358-359 and 360. For Isidoro Mario Nardin, Licio Visintini’s Panerai watch became a symbol of cameraderie and a memento of his fallen comrade.

Chapter II.III in our book “The References” (first volume / 1930’s-1940’s) features the story behind this Ref. 3646 / Type C „Radiomir Panerai“ and its three owners, Licio Visintini (M.O.V.M.), Vittorio Stradi and Isidoro Mario Nardin, on page 350-397.

Information on “The References” 1930’s-1940’s (first volume) can be found here.

Enjoy reading!
[Ralf Ehlers & Volker Wiegmann]

Page 70-71 – engraved caseback of a Ref. 3646 / Type A “Radiomir Panerai”.

Page 112-113 – 25 July 1941: „Operazione Malta 1“ – setting out for the Augusta base, heading towards Malta: Teseo Tesei (SLC), Vittorio Moccagatta and Giobatta Parodi (MAS 452).

Page 358-359 – contemporary illustration of SLC missions starting from the “Olterra” in the Bay of Gibraltar (1942 and 1943).

“The References” 1930’s-1940’s at a glance:
33 Vintage Panerai watches, history, instruments and straps of the 1930’s-1940’s. Featured References: 2533, 3646, the Mare Nostrum chronograph and compasses.

26 x 26 cm, 696 pages, trilingual (German, Italian and English language in one book), 19 database charts, 383 illustrations, including rare historic photos from the 2nd World War, hardback jacket, slipcase.

Visit our bookstore and enjoy reading soon!

Read about watches and instruments from Guido Panerai & Figlio. Vintage Panerai watches from the 1930’s to the 1960’s are described and photographed in intricate detail for the reader, telling the stories of their first users during their dangerous underwater missions.

“History1” (420 pages)
“History2” (480 pages)
“The References” 1930’s-1940’s (696 pages)
“The References” 1950’s-1960’s (696 pages)

As a reference finder, as an addition to your library at home or as a special christmas gift for your friends: our Vintage Panerai books will be a great read for any Panerai collector. Each book comes with an embossed hardback jacket (leather and canvas) in a slipcase, sized 10.2 x 10.2″, trilingual (= German, Italian and English language).

Our four books are in stock and can be shipped immediately – just visit our bookstore. Use the browse by tags function to get further information about the content in each of the four books. Read how to place your order here.

Take your seat and enjoy reading!
[Ralf Ehlers & Volker Wiegmann]

We recently added another unknown watch into our database – yet another piece of the puzzle surfaced: a Ref. 3646 / Type C with “Radiomir Panerai” sandwich dial, being watch #63 in our records of watches matching the criteria of the 3646 / Type C.

The Ref. 3646 / Type C “Radiomir Panerai” will be auctioned on 21 May 2022 at Dr. Crott’s 106th auction in Mannheim/Germany. It has been consigned by the family of the German “Kampfschwimmer” veteran Heinz Greten. Further info on auction lot 156 can be found here.

The watch appears with an unpolished case with a matching high bezel, typical for watches with “Radiomir Panerai” sandwich dial. The watch comes with a tubular shaped Rolex Oyster crown (Type 13). Inside the watch is a Rolex Cal. 618 / Type 1 movement with typical decorations and engravings on the bridges (ROLEX 17 RUBIS / FAB. SUISSE). The inner caseback bears the typical Rolex SA hallmark, reference and case number known for 3646 / Type C watches, with “Half Polish” decoration. Both hands appear black painted and re-lumed. The inner caseback bear also watchmakers’ service marks.

Noteworthy:
The outer caseback of the watch bear engravings of the first owner, German “Kampfschwimmer” Petty Officer Hans Greten with the additional info Antwerpen, referring to a mission he took part in September 1944.

The mission (“Operation Bruno” – the attack of the Kruisschans floodgates in Antwerp) is documented in the book “Sabotage unter Wasser” written by Michael Jung (2004) on page 120-121, as well as a photo of Hans Greten on page 107. Further info on this frogmen mission is also found in the book “Das Kommando der Kleinkampfverbände der Kriegsmarine” written by Helmut Blocksdorf (2003), on page 181. The earliest documentation of the mission is dating back to 1956 in the book “…denn sie liebten doch das Leben” written by Cajus Bekker (chapter six, page 148-160), in which Greten is mentioned several times (all books are written in German language).

Features of the watch:
Reference: 3646 / Type C
Dial: “Radiomir Panerai” (sandwich)
Case number: 10102XX
Movement: Rolex Cal. 618 / Type 1

In our book “The References” 1930’s-1940’s the watches of the entire reference 3646 are featured in chapter II with more than six hundred pages in the chapters II.I-II.VII. The seven different variations (including the number group 3646 / Type C – page 248-397 – to which this watch belongs) can be found in our reference quickfinder on page 14-20.

Please note that the very rare campaign insignia 3rd degree (visible in the background of the second photo) is the (separate) lot 155 and is not included in the lot of the watch. Information on different probation and campaign insignia of the German “Kampfschwimmer” units can be found in our book “History2” in chapter IX.

We hope the watch will find a good new home and that it remain surfaced in the Vintage Panerai collectors world. [Ralf Ehlers & Volker Wiegmann]

A “Gamma” frogman who wrote history. A photo from 1998 which was a reminder not to miss the chance to capture Luigi Ferraro’s story in our book “The References” – together with the 3646 / Type B watch he was wearing during the “Operazione Stella” in 1943.

One of the few watches which can be followed back to the first owner, which is also a very famous one: Luigi Ferraro (M.O.V.M.). Not easy to capture as much as possible of his story in a part in the first volume of “The References”, which filled several books of Italian authors with hundreds of pages. Even in the first Panerai books, written by Giampiero Negretti in 1998, Luigi Ferraro’s famous missions in the mediterranean sea found their place to be mentioned.

To get in touch with the family of the veteran Luigi Ferraro (1914-2006) was a very intensive and exciting time during the research about his Ref. 3646 / Type B “Radiomir Panerai” with riveted plastic dial (chapter II.II page 190-203). Paolo Ferraro, one of Luigi Ferraro sons, provided excellent photos and made personal documents available for us to be featured in our book, which gave us the chance to illustrate the history behind his father’s watch.

In January 1943 Luigi Ferraro obtained his qualification to carry out underwater missions. Initially posted to North Africa to attack enemy targets in the Port of Tripoli, he had to leave the area and returned to Italy. In May 1943 he was posted to La Spezia, where he received instructions from commander Borghese for a new mission – this time not in North Africa, but in the eastern Mediterranean: the Turkish ports of Alexandretta and Mersina. Luigi Ferraro’s four “Stella” missions, for which he was awarded with the M.O.V.M., are described in chapter II.II (page 204-225).

Aside several tools of his time as a “Gamma” frogman, Luigi Ferraro’s 3646 / Type B “Radiomir Panerai” never changed ownership and remained a memorable piece for him and his family since he returned from war. The watch shows intensive proof of aging and is an example of how different these rare watches have aged after more than 70 years. The watch still has its original strap, as well as its original domed plexiglas crystal – intensively aged with countless fissures. Numbers, indices and the typical “Radiomir Panerai” lettering on the riveted plastic dial can still be made out at some points.

Luigi Ferraro’s watch has been recorded in our database in 2014, however the watch was known to us already years before. The Rolex 618 / Type 1 movement in combination with the small Oyster Watch Co hallmark, embossed on the inner caseback together with the reference and case number, is matching our criteria for being a watch of the Reference 3646 / Type B. The outer caseback bears a rare matriculation number, of which only a very few 3646 watches are known today. We have published further information about the different matriculation numbers on some of these watches in chapter II.III (page 301-303).

Luigi Ferraro’s 3646 / Type B “Radiomir Panerai” with riveted plastic dial is published extensively in chapter II.II (page 190-203) of the book “The References” 1930’s-1940’s.

More 3646 watches with an interesting history, related to their first owners and the missions they carried out during the Second World War, are introduced in chapter II.I (Ernesto Notari) and in chapter II.III (Licio Visintini). Enjoy reading!

Just a few days before the first success of the MT explosive boats on 26 March 1941 in Souda Bay, the 1st MAS Flotilla changed its name and became the 10th MAS Flotilla – the Decima MAS on 15 March 1941. Capitano di Fregata Vittorio Moccagatta was the new commander and divided the special weaponry – Mezzi d’Assalto – into two divisions:

The surface division – Mezzi di Superficie – under the command of Capitano di Corvetta Giorgio Giobbe (see photo on page 115, commander Giobbe wearing clearly visible a Panerai watch on his right wrist) had a fleet of various explosive boats (category MT, MTM, MTR, MTS, MTMS, SMA and MTL) for sabotage operations, based in La Spezia.

The underwater division – Mezzi Subacquei – under the command of Capitano di Corvetta Junio Valerio Borghese operated the diving School in Livorno, the SLC training base at Bocca di Serchio, the transport submersibles (Scirè and Ambra) and the frogmen of the “Gruppo Gamma”.

After the desaster at Malta in July 1941 (“Operazione Malta 1”), the Decima MAS was restructured. Capitano di Fregata Ernesto Forza became the new commander of the Decima MAS. The underwater division was given the name of the fallen inventor of the SLC, Teseo Tesei, now commanded by Junio Valerio Borghese. The surface division was given the name of the fallen commander of the Decima, Vittorio Moccagatta, now commanded by Salvatore Todaro. See page 116 with a historical chart of the new structured Mezzi d’Assalto as of October 1941:

Ernesto Notari became commander of the SLC training base at Bocca di Serchio. His Ref. 3646 / Type A “Radiomir Panerai” (with its unique engraved caseback) is documented on page 58 – 91.

Read more about the Mezzi d’Assalto on page 92 – 153 in chapter II.I of the book “The References” 1930’s-1940’s.