Seiko Cal. 6653 - 734

This Spring Drive model from 1972 features a 37mm PVD Black case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-8187f0716372]

Also known as: Rally, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1972

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