Seiko Cal. 5687 - 752

This Automatic model from 1978 features a 37mm Stainless Steel case. It features a Navy dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-029429be920b]

Also known as: Tuna, Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1978

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