Seiko Cal. 6237 - 831

This Hand-Winding model from 1971 features a 40mm Two-Tone case. It features a Cream dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-6feb46e25dac]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1971

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