17MM 18MM 19MM 20MM 21MM 22MM 23MM 24MM 26MM. Width: 23mm at the case lug and 21mm at the buckle. Finest Genuine Calf Leather Lining with Blue Stitch on Reverse Side. Sapphire Crystals. 9mm Lugs end 1.9mm Buckle end (Thickness exact like OEM strap ).
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