Seiko Cal. 5691 - 237

This Hand-Winding model from 1974 features a 38mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-dfe71ccb06d1]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1974

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