Seiko Cal. 4515 - 510

This Automatic model from 1968 features a 44mm PVD Black case. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-ab84bd6009ff]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1968

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