Seiko Cal. 4578 - 157

This Hand-Winding model from 1976 features a 39mm Two-Tone case. With its 19mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-e86288a28f19]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1976

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