Seiko Cal. 4481 - 774

This Spring Drive model from 1970 features a 42mm Hardlex-Coated Steel case. It features a Black dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-21beee011f75]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1970

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