Seiko Cal. 4520 - 658

The Seiko 4520-658 represents an important milestone in Seiko's 1967 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-c35259b07271]

Also known as: Monster, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1967

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