Seiko Cal. 6643 - 444

Seiko 6643-444

The Seiko 6643-444 represents an important milestone in Seiko's 1999 lineup. Powered by the 6643 caliber with 19j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-32d2bda7d03d]

Also known as: Tuna, Arnie

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
13.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Black
Jewels
19j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1999

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