Seiko Cal. 6643 - 995

This Quartz model from 1978 features a 39mm Hardlex-Coated Steel case. Powered by the 6643 caliber with 22j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-cdd8e8069859]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1978

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