Seiko Cal. 6639 - 380

This Quartz model from 1981 features a 34mm Gold-Plated case. Powered by the 6639 caliber with 28j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-91b495820945]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1981

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