Seiko Cal. 6635 - 156

This Hand-Winding model from 1987 features a 45mm Hardlex-Coated Steel case. Powered by the 6635 caliber with 19j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-f45abf268265]

Also known as: Sumo, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

19j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1987

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