Seiko Cal. 3877 - 639

This Quartz model from 1976 features a 42mm Titanium case. Powered by the 3877 caliber with 28j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-2aa04688c11a]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1976

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