Seiko Cal. 4522 - 371

This Hand-Winding model from 1980 features a 42mm Two-Tone case. Powered by the 4522 caliber with 31j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-3527a97b9050]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1980

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