I have read in 3 publications that the GMT Master II was fitted with the caliber 3186 in 2005. Does anybody know the exact date when the first whatches were fitted with caliber 3186 in 2005? Alteratively does anybody know the serial numbers of the watches with caliber 3186 in 2005?
If not, maybe somebody can provide further informations due to this topic
.
Thank you in advance
Hannes Behensky