Seiko Cal. 6641 - 981

Seiko 6641-981

The Seiko 6641-981 represents an important milestone in Seiko's 1976 lineup. Powered by the 6641 caliber with 28j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-6effc930d8a3]

Also known as: Rally

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
41mm
Case Thickness
9.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
28j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1976

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