Seiko Cal. 4450 - 372

This Spring Drive model from 1965 features a 34mm PVD Black case. Powered by the 4450 caliber with 24j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-e287986514e9]

Also known as: Sumo, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1965

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