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Thanks Simon. I've been on the lookout for a copy of this catalogue since seeing a page from the 1931 copy that had Helvetias in it.

I've attached a picture of the different types of the...

For those of you interested this is a picture of the spring mounting for the movement as illustrated at the top of the first page above.

https://i.imgur.com/0ZSVoUhl.jpg

This is the watch...

Hello all,

I know not strictly military but I know some members have an interest in early waterproof and shockproof watches so I thought I would post these pages on ‘Special Watches’ from the 1934...