Seiko Cal. 4510 - 937

This Spring Drive model from 1968 features a 36mm PVD Black case. With its 20mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-c96c18983e6d]

Also known as: Sportsmatic, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1968

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