Seiko Cal. 4578 - 685

This Spring Drive model from 1970 features a 40mm Titanium case. With its 20mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-666c95cf7b4f]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1970

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