Seiko Cal. 5688 - 121

This Hand-Winding model from 1976 features a 45mm PVD Black case. It features a Champagne dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-4fd4d44f99e3]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1976

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