Seiko Cal. 6231 - 734

This Spring Drive model from 1972 features a 34mm Titanium case. It features a Black dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-d938b27aa79e]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1972

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