Seiko Cal. 4457 - 789

This Spring Drive model from 1993 features a 36mm Hardlex-Coated Steel case. With its 19mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-6552ec45d7d5]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1993

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