Seiko Cal. 3831 - 211

This Kinetic model from 1968 features a 45mm Two-Tone case. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-8187186b847e]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1968

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