Seiko Cal. 5641 - 580

This Hand-Winding model from 1991 features a 40mm Gold-Plated case. Powered by the 5641 caliber with 35j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-315245abf4b5]

Also known as: Sumo, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1991

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