Seiko Cal. 4431 - 276

This Quartz model from 1979 features a 39mm PVD Black case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-70ca197aa20b]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1979

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