Seiko Cal. 6641 - 556

This Solar model from 1991 features a 37mm Hardlex-Coated Steel case. Powered by the 6641 caliber with 21j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-7cab086474e4]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1991

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