Seiko Cal. 6648 - 309

Seiko 6648-309

The 6648-309 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6648 caliber with 36j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-989b1af0bf5b]

Also known as: Sumo

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
40mm
Case Thickness
8.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
White
Jewels
36j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1980

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