Seiko Cal. 6633 - 404

This Automatic model from 1991 features a 43mm Two-Tone case. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-39948f515878]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1991

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