Seiko Cal. 6688 - 147

This Automatic model from 1973 features a 42mm Hardlex-Coated Steel case. With its 20mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-821100cd7d9b]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1973

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