Seiko Cal. 4578 - 949

This Spring Drive model from 1981 features a 36mm Two-Tone case. With its 21mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-536db7d49ffc]

Also known as: Navigator, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1981

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