Seiko Cal. 5285 - 637

This Hand-Winding model from 1965 features a 42mm Stainless Steel case. Powered by the 5285 caliber with 21j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-b0e8e12f9abd]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1965

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