Seiko Cal. 4520 - 577

The Seiko 4520-577 represents an important milestone in Seiko's 1986 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-b8a688132cb2]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1986

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