Seiko Cal. 4520 - 558

This Hand-Winding model from 1967 features a 46mm Hardlex-Coated Steel case. It features a Silver dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-1570ee10ac7b]

Also known as: Turtle, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1967

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