Seiko Cal. 6643 - 965

Seiko 6643-965

The Seiko 6643-965 represents an important milestone in Seiko's 1976 lineup. Powered by the 6643 caliber with 35j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-1291468f7119]

Also known as: Bullhead, Arnie

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
12.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Cream
Jewels
35j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1976

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seikata-wm-1291468f7119