One of the rarest historical documents which we came across during the research of our book “History2”: a handwritten battle report of a frogmen mission at the Pomeranian coast, dated April 3rd, 1945.

Documents from the last weeks of the Second World War are today, without a doubt, very hard to find – if existing after more than 70 years at all… With the support of the family of the German “Kampfschwimmer”, who once wrote this report after he returned safely from the combat zone, we were able to include this battle report (page 672-673 shown on the coffee table shot on the left) in chapter VII of “History2” (featuring the chapters V-IX with a total of 480 pages).

Interesting details in his handwritten battle report are the times which he mentioned aside other details, all easily readable on the sandwich dial of the Ref. 3646 / Type D (with 5 minute markers / indices) he was wearing during the mission: He wrote down 21:50, 23:30, 23:45, 23:50-0:30 and finally 2:05 AM – the moment he left the waters – after 4:15 hours trying to attack the Wollin railroad bridge together with a group of four frogmen from the “Einsatzgruppe Keller”, towing two mines thru the waters of the Dievenow. 

One of these five frogmen is featured in our book “History1”. Several pages of his diary are published in chapter II, where he wrote down what happened during the frogmen attack of the Gristow bridge at the Pomeranian coast (page 134-143).

Read more on further rare documents which helped us to capture the history behind the Ref. 3646 / Type D “Kampfschwimmer” watch, shown on the coffee table shot on the left here. Photos from the years 1944 and 1945 showing this watch on the frogman’s wrist, as well as his identification papers and travel documents issued in Venice, helped us to reconstruct the route he took to the mission grounds.

Obviously his handwritten battle report never reached the headquarters but somehow he managed to keep it safe for his personal records, giving us today, more than 70 years later, a detailed inside view on a mission he carried out together with four frogmen at the Eastern Front in April 1945…

Our two “History” books can be ordered only in our bookstore.

Enjoy reading stories behind these watches!
[Ralf Ehlers & Volker Wiegmann]

During the research on the history behind a Ref. 3646 / Type D “Kampfschwimmer” with engraved caseback, we were able to study the diary of the first owner of the watch. This diary survived the last days of the Second World War and the veteran kept it for decades, willed to share it with us and partially featured in chapter II of our book “History2”.

Thanks to the many detailed descriptions (e.g. the water temperature, current, weather conditions and explosive charges carried) which the frogman wrote down and the examination of historical maps of the 1940’s it was possible to analyze his diary entries precisely and visualize his memories to the readers of our book in an impressive way. The collected documents and additional information let this chapter become one of the unique stories behind a Ref. 3646 / Type D “Kampfschwimmer” watch.

Reading page 83 of “History1” reminds on a part of our research which did happened not often. The frogman wrote the following lines in his diary at the beginning of March 1945:

“The next morning we set off towards the east in a truck. With unbelievable power, the Russians have pushed thru as far as the [river] Oder in their last offensive. They even managed to build two bridgeheads at Fürstenberg [in November 1961 the city was renamed Eisenhüttenstadt]. Reconnaissance flights tell us that they are putting tremendous amounts of people and material into these bridgeheads”.

Reconnaissance flights? Having this information in mind, we started to search various archives for still existing aerial photographs – maybe the one which the frogmen mentioned in his diary still exists? After the war, some remaining photos were transferred to archives which stored these photos for bomb clearance works. Good luck on the hunt! Guess how easy this search would be? Where to start? To find a aerial photo from the same date, same area and even showing the target, not knowing if its existing at all? We found it – a needle in a haystack – the photo which was shown to the frogmen as their next target.

Dated to 1 March 1945, the photo taken by a reconnaissance flight shows one of the pontoon bridges built across the Oder by the Russian troops just shortly before – which became soon later the target for the “Keller Group” just as the frogman wrote it down in his diary. Read more on the diary and various historic documents which helped us to visualize this source of information during our research on a Ref. 3646 / Type D “Kampfschwimmer” watch here.

The coffee table shot shows page 110-111, chapter II of “History2” next to one of the few original photos of the “Keller Group” taken shortly before their missions at the eastern front (spot some Panerai gear in it). This photo is published on page 94 in the same chapter. The coffee table shot includes also a Ref. 3646 / Type D “Kampfschwimmer”, featured in chapter V of “History2” – the watch of frogman Siegfried Köneke, who was also a member of the “Keller Group”. Read more about this chapter here.

Our two “History” books can be ordered only in our bookstore.

Enjoy reading stories behind these watches!
[Ralf Ehlers & Volker Wiegmann]

We added another previously unknown watch into our database – yet another piece of the puzzle surfaced, which marks the first entry of a Ref. 3646 / Type D in 2022 and in total the Type D #107 in our records.

The “Kampfschwimmer” watch with anonymous sandwich dial appears with a rare engraving on its caseback, bearing the initials of the first owner and the name of the unit he belonged to (Marine Kampfschwimmer 1945).

The inner caseback of the watch (full polished, read more in “The References” 1930’s-1940’s on page 486-487) bears the Rolex SA hallmark, reference and case number known for 3646 / Type D watches. Inside the watch is a Rolex Cal. 618 / Type 1 movement with typical decorations and engravings on the bridges (ROLEX 17 RUBIS / FAB. SUISSE).

Still sewn onto the soldered lugs is the original leather strap (!) including the large and very rare nickel-plated brass pin buckle. The watch has its original onion shaped winding crown and the typical blued steel hands with original luminous material.

Features of the watch:
Reference: 3646 / Type D
Dial: “Kampfschwimmer” (sandwich, anonymous)
Case number: 2605XX
Movement: Rolex Cal. 618 / Type 1

The first owner of the watch took part in a frogmen mission against Russian pontoon bridges across the river Oder at Aurith, near Fürstenberg, in March 1945. You can read about these frogmen missions in our book “History1” in chapter II on page 83-123. The first owner was born in 1924 and passed away in 2000.

The watch is accompanied with an interesting documentation of his service during the Second World War and further information about his life, after he was released from British imprisonment in 1945.

If you are interested to buy this watch, please contact the owner directly via e-mail: albert59er@t-online.de

The brass dialed Ref. 3646 / Type D will be auctioned on 13 November 2021 at Dr. Crott’s 105th auction in Mannheim. You can read more about this watch here or go directly to the auctioneer’s website (Lot 73).

Features of the watch:
Reference: 3646 / Type D
Dial: “Kampfschwimmer”  (painted brass, anonymous)
Case number: 2607XX
Movement: Rolex Cal. 618 / Type 1

We hope that this Ref. 3646 / Type D with brass dial will find a good new home and remains surfaced in the Vintage Panerai collectors world. [Ralf Ehlers & Volker Wiegmann]

We recently added another unknown watch into our database – yet another piece of the puzzle surfaced, which marks the Ref. 3646 / Type D #104 in our records. The “Kampfschwimmer” watch with anonymous painted brass dial appears with an unpolished case with a matching flat bezel. The original winding crown has been replaced.

Watches of the Reference 3646 / Type D are featured in our book “The References” 1930’s-1940’s in chapter II.IV (page 398-531) including a historic photo of a “Kampfschwimmer” wearing a 3646 with brass dial on page 475. Brass dialed Ref. 3646 / Type D are featured on page 468-493. In this part of the book, an overview of different decorative polish on the inside of the caseback (Type A – Type G) can be found on page 486.

The caseback of the watch is not engraved. However, a handwritten note from the son of the “Kampfschwimmer” explains that his father completed his training in Bad Tölz at Lehrkommando 702. You can read more about the training site Bad Tölz and the Lehrkommando 702 in our book “History2” on page 660-662 and 789-795.

The watch will be up for auction on November 13, 2021 at Dr. Crott’s 105th auction in Mannheim.

The inner caseback bears the typical Rolex SA hallmark, reference and case number known for 3646 / Type D watches. Inside the watch is a Rolex Cal. 618 / Type 1 movement with typical decorations and engravings on the bridges (ROLEX 17 RUBIS / FAB. SUISSE).

Features of the watch:
Reference: 3646 / Type D
Dial: “Kampfschwimmer”  (painted brass, anonymous)
Case number: 2607XX
Movement: Rolex Cal. 618 / Type 1

We hope that this Ref. 3646 / Type D with brass dial will find a good new home and remains surfaced in the Vintage Panerai collectors world. [Ralf Ehlers & Volker Wiegmann]

We recently added another yet unknown watch into our records: a “Kampfschwimmer” watch with anonymous, painted brass dial. Today it marks watch #104 which is matching the criteria for our database classification of the Ref. 3646 / Type D.

You can read more about the watch and its details here.

Another Ref. 3646 / Type D “Kampfschwimmer” with anonymous dial has been added into our database: The first specimen of this number group in the year 2021.

The watch will be up for auction at Dr. Crott Auctioneers in their 104th Auction on 22 May, 2021. Further info on this Ref. 3646 / Type D is available in our Watch Point.

The watch is up for auction at Dr. Crott Auctioneers here.

[Photo with kindly permission / courtesy of Dr. Crott Auctioneers]

More than two hundred watches of the Reference 3646 are registered in our database today. Among all different Vintage Panerai models, the 3646 marks the reference with the most known specimen in our records. In 2009, 143 recorded watches were featured in the first (sold out) edition of our book “The References”. Within the entire serial number sequence of the reference 3646, we differentiate between seven different variations (3646 / Type A – Type G). The photo on the left shows a Ref. 3646 / Type D with anonymous “Kampfschwimmer” dial, which is featured in chapter II.IV (page 454-467).

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 following an intro on page 40-49. The seven different variations (3646 / Type A – Type G) can be found in our reference quickfinder on page 14-20.

Chapter II.I = Reference 3646 / Type A
(featuring two different watches on page 50-169).

Chapter II.II = Reference 3646 / Type B
(featuring four different watches on page 170-247).

Chapter II.III = Reference 3646 / Type C
(featuring seven different watches on page 248-397).

Chapter II.IV = Reference 3646 / Type D
(featuring nine different watches on page 398-531).

Chapter II.V = Reference 3646 / Type E
(featuring four different watches on page 532-573).

Chapter II.VI = Reference 3646 / Type F
(featuring two different watches on page 574-607).

Chapter II.VII = Reference 3646 / Type G
(featuring two different watches on page 608-645).

Since January 2016, a total of 17 watches of the Ref. 3646 / Type D have been added into our database until the beginning of February 2019. Seven of them surfaced with anonymous “Kampfschwimmer” dials, ten of these 17 watches surfaced with painted brass dials.

All new additions are inside the number group 260408-260873, representing the watches of the Ref. 3646 / Type D. Added to the 79 watches we had in our records in January 2016, the total number of Ref. 3646 / Type D watches in our database is actually counting 103 specimen.

Our “The Reference” books are available in our bookstore. Enjoy reading!

We added a Ref. 3646 / Type D with painted brass dial into our database earlier this year. The watch was later given to Dr. Crott Auctioneers for their upcoming 102nd Auction on 29 June 2020. Recently we took the chance and stopped by in Mannheim to take some live photos of the watch.

The watch with anonymous painted brass dial appears with an unpolished case with a matching flat bezel and original, domed plexi. The caseback of the watch is plain (not engraved with a signature or initials of the first owner).

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 blued steel hands appear untouched, with the original luminous material, partially broken out on the minute hand.

The original winding crown and stem are missing. Its not impossible to find these parts, however it is not easy, too. But if this would happen after the auction during a service, the new owner would have a really nice Ref. 3646 / Type D with a lot patina on his wrist. Fingers crossed…!

The inner caseback bears the typical Rolex SA hallmark, reference and case number known for 3646 / Type D watches. Watches of the Reference 3646 / Type D are featured in our book “The References” 1930’s-1940’s in chapter II.IV (page 398-531) including a historic photo of a “Kampfschwimmer” wearing a 3646 with brass dial on page 475. Brass dialed Ref. 3646 / Type D are featured on page 468-493. In this part of the book, an overview of different decorative polish on the inside of the caseback (Type A – Type G) can be found on page 486.

Features of the watch:
Reference: 3646 / Type D
Dial: “Kampfschwimmer”  (painted brass, anonymous)
Case number: 2607XX
Movement: Rolex Cal. 618 / Type 1

The watch will be up for auction here.

We have recently added another unknown watch into our database – yet another piece of the puzzle surfaced, which marks the Ref. 3646 / Type D #100 in our records at the beginning of the year 2020.

The watch with anonymous painted brass dial appears with an unpolished case with a matching flat bezel. The caseback of the watch is not engraved. It remained in a drawer during the last decades and was introduced to us in the last days of January by the current owner.

The inner caseback bears the typical Rolex SA hallmark, reference and case number known for 3646 / Type D watches. Watches of the Reference 3646 / Type D are featured in our book “The References” 1930’s-1940’s in chapter II.IV (page 398-531) including a historic photo of a “Kampfschwimmer” wearing a 3646 with brass dial on page 475. Brass dialed Ref. 3646 / Type D are featured on page 468-493. In this part of the book, an overview of different decorative polish on the inside of the caseback (Type A – Type G) can be found on page 486.

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 blued steel hands appear untouched, with the original luminous material, partially broken out on the minute hand. Original winding crown and stem are missing.

Features of the watch:
Reference: 3646 / Type D
Dial: “Kampfschwimmer”  (painted brass, anonymous)
Case number: 2607XX
Movement: Rolex Cal. 618 / Type 1

The watch will be up for auction here.