Seiko Cal. 3877 - 975

This Solar model from 1975 features a 39mm PVD Black case. Powered by the 3877 caliber with 25j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-b31567b3701f]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1975

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