Seiko Cal. 4425 - 137

The 4425-137 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4425 caliber with 29j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-7385ad032cb0]

Also known as: Turtle, Shogun

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1971

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