Seiko Cal. 5641 - 829

This Hand-Winding model from 1977 features a 40mm Stainless Steel case. Powered by the 5641 caliber with 18j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-fd86aff1ceb0]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1977

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