Seiko Cal. 4457 - 923

This Hand-Winding model from 1972 features a 46mm PVD Black case. With its 18mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-35b0ba8e817c]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1972

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