Seiko Cal. 4522 - 503

The Seiko 4522-503 represents an important milestone in Seiko's 1977 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-0fd06ca9ddc3]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1977

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