Seiko Cal. 4520 - 740

This Automatic model from 1978 features a 37mm Gold-Plated case. It features a Green dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-31f5006727b4]

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1978

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