Seiko Cal. 5631 - 660

This Solar model from 1986 features a 42mm Stainless Steel case. Powered by the 5631 caliber with 22j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-ed36ed907f8d]

Also known as: Crown

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1986

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