Seiko Cal. 4561 - 723

This Spring Drive model from 1966 features a 35mm PVD Black case. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-7c0c31a03de9]

Also known as: Bullhead, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1966

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