Seiko Cal. 5691 - 665

This Hand-Winding model from 1981 features a 45mm PVD Black case. It features a Black dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-abf6818b8a36]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1981

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