Seiko Cal. 3865 - 798

The Seiko 3865-798 represents an important milestone in Seiko's 1990 lineup. Powered by the 3865 caliber with 17j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-067286d897f4]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1990

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