Seiko Cal. 0771 - 421

This Automatic model from 1970 features a 36mm Two-Tone case. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-3ab30fa28519]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1970

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