Seiko Cal. 5630 - 875

This Quartz model from 1965 features a 37mm Gold-Plated case. It features a Silver dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-43341152ff21]

Also known as: Sumo, Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1965

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