Seiko Cal. 6131 - 400

This Hand-Winding model from 1979 features a 39mm Stainless Steel case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-9e73382ca5a0]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1979

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