Seiko Cal. 6633 - 503

This Hand-Winding model from 1977 features a 36mm Two-Tone case. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-24f937f9fd5f]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1977

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