Seiko Cal. 4420 - 678

Seiko 4420-678

The 4420-678 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4420 caliber with 34j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-f8e9766bb9a7]

Also known as: Samurai

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
8.0mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
190m
Dial Color
White
Jewels
34j
Frequency
21,600 bph
Power Reserve
45 hours
Year
1979

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