Seiko Cal. 4520 - 503

The Seiko 4520-503 represents an important milestone in Seiko's 1977 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-fbcba14681a2]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1977

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