Seiko Cal. 4451 - 978

This Kinetic model from 1972 features a 46mm PVD Black case. Powered by the 4451 caliber with 24j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-31268b84e524]

Also known as: Tuna, Sea Horse

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1972

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