Seiko Cal. 4457 - 287

The Seiko 4457-287 represents an important milestone in Seiko's 1976 lineup. Powered by the 4457 caliber with 20j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-003272b38d21]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

46mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1976

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