Seiko Cal. 4451 - 512

The Seiko 4451-512 represents an important milestone in Seiko's 1977 lineup. Powered by the 4451 caliber with 21j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-b5bfe59de4c5]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1977

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