Seiko Cal. 6331 - 366

This Quartz model from 1987 features a 43mm Gold-Plated case. Powered by the 6331 caliber with 19j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-1244160a5e0d]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1987

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