Seiko Cal. 6698 - 641

The Seiko 6698-641 represents an important milestone in Seiko's 1972 lineup. Powered by the 6698 caliber with 22j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-6abbf454803b]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1972

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