Seiko Cal. 5652 - 831

This Spring Drive model from 1979 features a 37mm Gold-Plated case. It features a Black dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-2882f619c8ca]

Also known as: Tuna, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1979

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