Seiko Cal. 5638 - 722

This Hand-Winding model from 1993 features a 45mm Stainless Steel case. Powered by the 5638 caliber with 33j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-fa5c7d52d208]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1993

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