Seiko Cal. 6641 - 747

Seiko 6641-747

The 6641-747 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6641 caliber with 25j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-de0835933da7]

Also known as: Navigator

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
10.8mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Blue Sunburst
Jewels
25j
Frequency
28,800 bph
Power Reserve
54 hours
Year
1999

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seikata-wm-de0835933da7