Seiko Cal. 6331 - 153

This Hand-Winding model from 1974 features a 34mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-6260f49e1bb8]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1974

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