Seiko Cal. 4578 - 185

This Hand-Winding model from 1971 features a 40mm Titanium case. With its 21mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-b5f9e6c1a280]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1971

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