Seiko Cal. 4438 - 621

This Hand-Winding model from 1977 features a 34mm Stainless Steel case. Powered by the 4438 caliber with 33j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-cdff8b126b8c]

Also known as: Pogue, Crown

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1977

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