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Old 10 June 2015, 07:05 PM   #1
Gmt1970
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1675 year question

Had a case back photo taken during a service, but not a clear photo . The watch no is 30598xx just wondering if it's 70 or 71 . Pic looks like 1171 or 1170 hard to tell , cheers .
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Old 10 June 2015, 07:08 PM   #2
TimeToGo
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Probably 1971.

Post the picture..
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Old 10 June 2015, 08:43 PM   #3
Vincent65
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or '72
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Old 10 June 2015, 09:11 PM   #4
buenosdias
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I vote for '72
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Old 11 June 2015, 12:25 AM   #5
springer
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1971 or 1972. 1970 is not within range for the serial number. Here is partial section from my case back / serial number data that I have collecting for a while now.

241XXXX, case back dated I 70 (red Sub sold 7/71)
24XXXXX, case back dated I 70
244XXXX, case back dated II 70
247XXXX, case back dated II 70
25XXXXX, case back dated I 70
250XXXX, case back dated I 70
26XXXXX, case back dated III 70
267XXXX, case back dated I 70
271XXXX, case back dated I 70
2817XXX, case back dated I 70 (GMT 1675)
231XXXX, case back dated I 71
281XXXX, case back dated II 71
28XXXXX, case back dated IV 70 (red Sub sold 6/1974)
286XXXX, case back dated II 70 (SS/14k GMT 1675)
28XXXXX, case back dated IV 70
29XXXXX, case back dated I 71
292XXXX, case back dated II 71
297XXXX, case back dated II 71
304XXXX, case back dated II 72
307XXXX, case back dated III 71
309XXXX, case back dated I 72
31XXXXX, case back dated II 71
323XXXX, case back dated I 72
32XXXXX, case back dated II 72
330XXXX, case back dated IV 72 (Sub 1680)
33XXXXX, case back dated II 72
33XXXXX, case back dated III 72
33XXXXX, case back dated IV 72
35XXXXX, case back dated I 72
36XXXXX, no case back date
374XXXX, no case back date
380XXXX, no case back date
386XXXX, case back dated I 72
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Old 11 June 2015, 12:33 AM   #6
Vincent65
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I was told off once for suggesting that case-backs may be even a rough indication of watch production dates (specifically, the case), and that they do not correspond very closely to serial case numbers...
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Old 11 June 2015, 01:56 AM   #7
Gmt1970
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hope these help , bad photo

roly1.jpg

roly2.jpg

roly3.jpg

roly4.jpg
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Old 11 June 2015, 03:17 AM   #8
marcello pisani
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case in this range ....

Quote:
Originally Posted by Gmt1970 View Post
Had a case back photo taken during a service, but not a clear photo . The watch no is 30598xx just wondering if it's 70 or 71 . Pic looks like 1171 or 1170 hard to tell , cheers .
has been produced around the middle of 1972.
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