Seiko Cal. 6353 - 257

Seiko 6353-257

The 6353-257 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6353 caliber with 17j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-abfd4478b512]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
12.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
Black
Jewels
17j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1979

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