Seiko Cal. 4420 - 868

This Spring Drive model from 1965 features a 38mm PVD Black case. Powered by the 4420 caliber with 26j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-378888c8fe89]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1965

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