Seiko Cal. 0721 - 311

This Spring Drive model from 1975 features a 36mm Stainless Steel case. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-210d2aa805cc]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1975

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