Seiko Cal. 5645 - 580

This Spring Drive model from 1966 features a 43mm Gold-Plated case. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-e42613ce1af1]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1966

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