Seiko Cal. 4425 - 603

This Spring Drive model from 1981 features a 34mm Stainless Steel case. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-8d891288aeb5]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1981

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