Quote:
Originally Posted by Alpino
As far as I know, Oysterlock appeared on Gmt line in 1996 with 78790, and was previously an option with 93150 for a short period of time (94 to 96) .
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The 9315 and 93150 have been an option since the 1675 and 16750. Most GMTs up until the mid-'90s could be ordered or fitted with that bracelet long before the 78790/78790A appeared. That includes the 16760 and 16700 prior to the 16710 getting the 78790/78790A. It was intended to fit over flight suits using the dive extension.
Many were fitted after the sale by the dealer and therefore wouldn't have left the factory as such.