Seiko Cal. 4425 - 350

The 4425-350 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4425 caliber with 25j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-07b03253094c]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1986

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