Seiko Cal. 4577 - 237

This Spring Drive model from 1966 features a 45mm Titanium case. With its 19mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-3396ee7d318a]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1966

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