Seiko Cal. 4425 - 318

Seiko 4425-318

The 4425-318 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4425 caliber with 22j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-9e12463507f9]

Also known as: UFO, Arnie

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
42mm
Case Thickness
14.0mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
150m
Dial Color
Burgundy
Jewels
22j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1972

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