Seiko Cal. 3863 - 372

This Spring Drive model from 1991 features a 45mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-e938e8d12a2e]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1991

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