Article number: ES7W42GM02
4GC9NB Color Black Lug width 19 mm Width clasp-side 17 mm Length of each part 88 mm Material Rubber / Sillicon
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 replacement Extension Link for the SEIKO SPB241 / SPB243 / SPB289 / SPB259 / SPB435 Alpinist
Brand SEIKO Article number 180N83JN00 Diameter 18
SEIKO 210A62LN02 Hardlex Crystal PXQ325X1 - 7N82-X231 SXGB70P9 Article number: ES7W42GM02This is the original replacement Hardlex Crystal for the SEIKO PXQ325X1 7N82 X231 Which SEIKO watches is this Hardlex Crystal compatible with? (see the table below for the complete list of compatible model and case codes numbers) This watch Hardlex Crystal is compatible with the following models: PXQ325X1, PXQ327X1, PXQ331X1, PXQ325X, PXQ327X, PXQ331X, Which SEIKO case numbers is this Hardlex Crystal compatible with? (see the table below for the