3646 profile view

by on Aug.04, 2013, under General

Interesting to see the profile of a Ref. 3646 watch in this photo, showing the pillow shaped case with the onion shaped crown (“Brevet +”) and its soldered to the case lugs in the middle of the photo. Bezel and caseback are both screwed down to the brass holding ring inside the watch, using lead seals to make the watch waterproof. The lead seals are sitting on the flat areas of the cushioned shaped case. This watch is using the high version of the bezel made for watches with a sandwich dial from Panerai.

In our new book “History2” we put a spotlight onto the construction of the Ref. 3646 in Chapter VIII.I with a technical illustration (page 771 – 775) and several photos, explaining the waterproof construction of the Reference 3646.

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