Seiko Cal. 6698 - 641

Seiko 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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