Color of the clasp: Gold-Tone
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:
Article number: JR-8144
Brand SEIKO Article number 260N08AN00 Diameter 26
SEIKO 220A02SN02 Sapphire Crystal SSWX028 - 1F21-0K90 195T29ALG Color of the clasp: Gold-ToneThis is the original replacement Sapphire Crystal for the SEIKO SSWX028 1F21 0K90 Which SEIKO watches is this Sapphire Crystal compatible with? (see the table below for the complete list of compatible model and case codes numbers) This watch Sapphire Crystal is compatible with the following models: SSWX028, SSWX0281, SSWX031, SSWX0311, SSWX030, SSWX0301, SXJT22J1, SXJT24J1, SXJT26J1, SXJT28J1, SFQ838P1, SFQ839P1, SFQ841P1, SWKC008, SWKC0081, SWKC010,