Seiko Cal. 3885 - 764

This Solar model from 1981 features a 37mm Gold-Plated case. Powered by the 3885 caliber with 21j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-2edbce60fb2a]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1981

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