Seiko Cal. 4550 - 523

Released in 1976, the Cal. 4550 with design code 523 was part of Seiko's domestic market collection. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-b3bb864abeda]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1976

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