Seiko Cal. 5687 - 701

This Hand-Winding model from 1971 features a 45mm Titanium case. It features a Black dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-681af51e3033]

Also known as: Monster, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1971

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