Seiko Cal. 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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