Seiko Cal. 3831 - 236

This Kinetic model from 1970 features a 40mm PVD Black case. Powered by the 3831 caliber with 17j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-ec809bee883a]

Also known as: Sumo, Arnie

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1970

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