Seiko Cal. 6645 - 676

This Spring Drive model from 1995 features a 41mm Hardlex-Coated Steel case. With its 21mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-4c8a643b335d]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1995

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