Seiko Cal. 6646 - 913

Seiko 6646-913

The 6646-913 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6646 caliber with 19j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-abf77d248832]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
8.8mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Black
Jewels
19j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1998

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seikata-wm-abf77d248832