Seiko Cal. 4427 - 378

Seiko 4427-378

The 4427-378 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4427 caliber with 27j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-c63e8a062099]

Also known as: Sumo, Emperor

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
43mm
Case Thickness
11.1mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Burgundy
Jewels
27j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1965

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seikata-wm-c63e8a062099