Seiko Cal. 6641 - 422

This Hand-Winding model from 1981 features a 36mm Gold-Plated case. Powered by the 6641 caliber with 34j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-74ae4d8e57a3]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1981

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