This is the genuine watchstrap for the Seiko SQ 50 - Swim Safe
gear axles Spron (Seiko's special alloy) 5-10% Balance spring Synthetic rubies 1-2% Jewels to reduce friction Nickel / other coatings 5-10% Protective layer on brass components Plastics / composite materials 1-5% Possibly for small components such as click springs and some bushings Explanation of the Composition:
This is the original black genuine leather watch strap for the Diesel DZ-1117 watch
Other references: T600032779
Tissot clasp-reference: T640026422
Tissot T055417A, T055410A & T055430A Watch Band T610032709 Black Leather 19 mm PRC 200 9R65 This is the genuine watchstrapThis is the original replacement watch strap for the Tissot T055417A, T055410A & T055430A PRC 200 This watch band bracelet is suitable for the following model numbers: T0554171603800, T0554301605700, T0554101605700, T0554171605700 T055. 417. 16. 038. 00, T055. 430. 16. 057. 00, T055. 410. 16. 057. 00, T055. 417. 16. 057. 00 This watch strap is suitable for the following case numbers: T055417 A, T055410 A, T055430 A, This watch band is a 100% original