Seiko Cal. 4525 - 951

This Spring Drive model from 1973 features a 36mm PVD Black case. Powered by the 4525 caliber with 20j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-6be76ebbac79]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1973

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