Seiko Cal. 6646 - 807

Seiko 6646-807

The 6646-807 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6646 caliber with 32j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-6212872a966f]

Also known as: Helmet

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
43mm
Case Thickness
14.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Burgundy
Jewels
32j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1975

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seikata-wm-6212872a966f