Seiko Cal. 5661 - 910

This Spring Drive model from 1984 features a 40mm Stainless Steel case. Powered by the 5661 caliber with 24j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-5ef8d16fc1d3]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1984

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