Seiko Cal. 4475 - 240

Seiko 4475-240

The 4475-240 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4475 caliber with 20j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-624297f10ebe]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
40mm
Case Thickness
15.9mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
170m
Dial Color
Champagne
Jewels
20j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1968

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seikata-wm-624297f10ebe