Seiko Cal. 5637 - 144

This Hand-Winding model from 1978 features a 44mm Stainless Steel case. Powered by the 5637 caliber with 26j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-986889d7ffc2]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1978

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