Seiko Cal. 3865 - 976

The Seiko 3865-976 represents an important milestone in Seiko's 1981 lineup. Powered by the 3865 caliber with 33j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-ef549c16a42d]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1981

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