Seiko Cal. 6643 - 636

This Quartz model from 1994 features a 38mm Hardlex-Coated Steel case. Powered by the 6643 caliber with 27j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-bc43286fab9a]

Also known as: Rally

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1994

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