Seiko Cal. 3861 - 789

The Seiko 3861-789 represents an important milestone in Seiko's 1966 lineup. It features a Black dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-abd7d3348687]

Also known as: Sumo, Sea Horse

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1966

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