| Re: The caliber 157 [message #12538 is a reply to message #12534] |
Thu, 11 June 2020 02:06   |
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JackW
Messages: 1998
Registered: May 2013
Location: Denver
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In my spread sheet, I have case and movement serials with notations on movement differences. These are the ones that had dated inscriptions on the back. Hope these data can be useful...
movement serial------case serial-------date inscribed-----other
100808 5032127 1926 marked adjusted on movement, case style 157-8
unknown 5031877 July 1, 1926 same as above; case marked patent pending
142524 5269743 Dec 25, 1928 Markings unknown; owned or sold my Tomas
1101621 1228340 June 1, 1932 14K case marked OS-67; mvt marked adjusted 4 positions
1104770 5414637 no date case ref. 157-84; movt marked adjusted 4 positions
1104859 5328177 no date case ref. 157-8w; adjustment marking milled off.
1106275 5329275 no date case ref. 157-8w; no adjustment markings present
1113750 5424839 Feb 28, 1934 case ref. 157-8w; movment marked "unadj"
Interestingly.... and part of why I think Gruen was assigning serial number ranges and sometimes jumping about a bit is that the cal 179; also by M. Favre was following a similar serial scheme as the 157: The dated 179s...
155989 5239309 12-25-1928 case ref. 179-27
228884 5427611 4-16-1934 case ref. 315-3 (not a typo)
1203750 5349968 1929 case ref. 179-27
All I know is based on hard work & writing by others. I can only aspire to augment this body of knowledge. If I am wrong it is because of my own failings. -me
"If I have seen farther it is by standing on the shoulders of giants." - Newton
[Updated on: Thu, 11 June 2020 02:07] Report message to a moderator |
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