It also fits Seamaster LX, Speedmaster LX, Seamaster Chronograph, Railmaster LX. 17MM 18MM 19MM 20MM 21MM 22MM 23MM 24MM 26MM. Thickness Long part: 5.20mm ( Lug end ) 2.00mm (Buckle end ). Thickness Short part: 5.20mm ( Lug end ) 2.00mm ( Buckle end ).
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