Seiko model SPB251 automatic wrist watch from Seiko Prospex Alpinist Collection. SEIKO Japanese made Automatic movement Caliber 6R35. Stainless steel case, screw-down crown. Brown patterned dial with date calendar. Brown leather band. Water resistant to 200 meters.
Movement:
SEIKO Mechanical Automatic ( Powered by wrist movement ). Caliber 6R35. 24 jewels.
Functions:
Date calendar, window display.
Case:
Solid AISI 316L Stainless steel. Combination satin/polished finish.
Crown:
Factory Logo engraved/embossed. Sport style, screw-down (threaded).
Crystal:
Sapphire. Very slight dome profile. Anti-Glare treated.
Dial:
Brown color. Applied polished steel tone markers. Luminous ( radiation-free LumiBrite ) hour markers.
Hands:
Steel color. LumiBrite radiation-free luminous filled.
Case Back:
Screw-down style ( threaded ). Observation crystal.
Band:
Brown color. Genuine leather.
Clasp:
Deployant style, with spring release. Factory Logo engraved/embossed.
Water Resistance:
200m/660ft/20atm.
Case Size:
38.00mm. 13.00mm.