Seiko Cal. 4515 - 370

This Spring Drive model from 1966 features a 39mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-540f03e130e1]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1966

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