Seiko Cal. 6646 - 285

This Hand-Winding model from 1983 features a 37mm Hardlex-Coated Steel case. With its 21mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-e4446472cdbc]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1983

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