Seiko Cal. 6331 - 143

This Automatic model from 1972 features a 46mm Two-Tone case. Powered by the 6331 caliber with 22j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-494b8e733fdf]

Also known as: Samurai, Silverwave

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1972

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