Seiko Cal. 4448 - 955

This Hand-Winding model from 1975 features a 39mm PVD Black case. Powered by the 4448 caliber with 25j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-a16046dc912e]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1975

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