Seiko Cal. 5691 - 556

This Hand-Winding model from 1980 features a 45mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-f06246561fb3]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1980

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