Seiko Cal. 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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