Seiko Cal. 6331 - 112

This Hand-Winding model from 1990 features a 40mm Stainless Steel case. Powered by the 6331 caliber with 26j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-0f1e0e12d370]

Also known as: Rally, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1990

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