Seiko Cal. 4457 - 920

This Quartz model from 1983 features a 40mm PVD Black case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-c95e155caff7]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1983

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