Rolex GMT II 116710LN. Rolex GMT II 116710. 12-17MM GOLD SPRING BAR FOR ROLEX WATCH MIDSIZE JUNIOR 6827 BAND BRACELET STRAP. 17MM 18MM 19MM 20MM 21MM 22MM 23MM 24MM 26MM. Q: How do I check what case number and/or serial number I have on my Rolex or Tudor?.
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