Seiko Cal. 5693 - 880

This Hand-Winding model from 1979 features a 44mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-1bf69ba61a21]

Also known as: Bullhead, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1979

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