Seiko Cal. 4520 - 400

This Kinetic model from 1971 features a 38mm Hardlex-Coated Steel case. Powered by the 4520 caliber with 30j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-4be0ebcf6ea8]

Also known as: Bullhead, Rally

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1971

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