Seiko Cal. 4520 - 551

The Seiko 4520-551 represents an important milestone in Seiko's 1978 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-de6a7f930a93]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1978

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