Seiko Cal. 4523 - 740

This Spring Drive model from 1965 features a 36mm Gold-Plated case. It features a Champagne dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-2f7eed15ba6d]

Also known as: Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1965

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