Seiko Cal. 6231 - 397

This Hand-Winding model from 1991 features a 40mm Titanium case. It features a White dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-0a87a358ea79]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1991

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