hans_jorgen_1968
3348
Serial No. on 5402.. and caseback..
Hi guys
Has all 5402 a letter and number on the case back?
If not, is it a service caseback or not genuine?
I ask, as this is a caseback of a 5402 sold in 1975, with AP above 6, with stated individual serial number from AD: 99xxx....
Best, and Thankyou for comments
Hans

(picture, credit seller..)
This message has been edited by hans_jorgen_1968 on 2011-11-05 13:10:06

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all 5402 steel models...
By: only5402 : November 6th, 2011-01:16
had a individual engraving like A - 1550, B - 1033 ... or something like this. Service caseback don´t existe, because the 5402 has a monocoque case, so that it is only possible to change the whole case. For me the case, that you show on the picture is ori...
and
By: only5402 : November 6th, 2011-01:28
i answered a little bit untrue (only a little bit), because also for D it is possible - but not only by comparing the "official caseback-number" for a D-series with another number from D-series, from wich you know both numbers. Than you can find out by ma...
5402 st serial number
By: 1175trek : March 5th, 2023-00:44
I recently found a similar serial number. It's 99XXX. Please let me know if you have any new information regarding this serial number. By the way, this watch has a certificate of authenticity issued by Swiss AP. What that means is that this serial number ...