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13 May 2016, 12:21 AM | #1 |
"TRF" Member
Join Date: Mar 2016
Location: Abu Dhabi, UAE/AZ
Watch: Yachtmaster
Posts: 679
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Case marking question
I just got a new OP and noticed a marking on the case, opposite side of the winding crown.
What is this, and when was it introduce? |
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