Seiko Cal. 5641 - 793

This Automatic model from 1975 features a 37mm PVD Black case. Powered by the 5641 caliber with 22j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-91e4a81048c1]

Also known as: Sumo, Goldfeather

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1975

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