Pocket Watch Serial Number Production List Please use the following tables to help determine the approximate age of your watch.1942 elgin bw raymond 22 jewels wwii iwc pocket watch serial numbers foto pocket watch serial number lookup tavannes pocket watch silver pocket watch serial number lookupIdentify Your Pocket WatchTavannes Pocket Watch Serial Numbers Foto Blouse AndTavannes Pocket Watch Serial NumbersTavannes Pocket Watch Serial NumbersTavannes Pany Serial NumbersTavannes Pocket Watch SilverWatch Movement.During WWI, the Tavannes Watch Co was approached by two British submarine commanders to consider the construction of a watch suitable for work on submarine decks awash in water - This watch was supposed to be water-tight, non-magnetic, and the balance wheel had to be of a material which shows a minimum of expansion and contraction with variations in temperature - The face had to be.
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