Seiko Cal. 4477 - 813

This Spring Drive model from 1981 features a 35mm Two-Tone case. It features a Silver dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-4182ee1f6f44]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1981

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