Seiko Cal. 3851 - 520

This Kinetic model from 1977 features a 45mm Titanium case. With its 20mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-07f056e6da83]

Also known as: Helmet, Crown

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1977

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