Seiko Cal. 6646 - 113

Seiko 6646-113

The 6646-113 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6646 caliber with 31j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-1f4108a2976c]

Also known as: UFO, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
12.0mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
White
Jewels
31j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1982

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