Seiko Cal. 4451 - 830

This Spring Drive model from 1979 features a 40mm PVD Black case. Powered by the 4451 caliber with 23j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-fff4cb449b9c]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1979

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