Seiko Prospex 1970 Heritage Diver's Seiko Boutique Exclusive Model Stainless Steel (Super Hard Coating) Automatic With Manual Winding 42.7mm SPB288

Case Material: Stainless steel (super hard coating)
Case Size: Thickness:13.2mm Diameter:42.7mm Lug-to-lug:46.6mm
Crystal; Curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands, index(es) and bezel
Clasp: Three-fold clasp with secure lock , push button release with extender
Distance between lugs: 20
*In an actual product, the case back direction might be different from the photograph.
Caliber Number: 6R35
Movement Type: Automatic with manual winding
Precision: 25 to -15 seconds per day
Power reserve: Approx. 70 hours
Jewels: 24
Functions: Stop second hand function, Date display
Water Resistance: 200m / 660ft diver's
Features: Unidirectional rotating bezel, Screw-down crown, Three-fold clasp with secure lock, Screw case back