Seiko Cal. 4557 - 344

This Spring Drive model from 1973 features a 42mm PVD Black case. With its 19mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-6bfb10b2c01c]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1973

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