Seiko Cal. 4520 - 588

Released in 1965, the Cal. 4520 with design code 588 was part of Seiko's domestic market collection. With its 18mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-d87ad69fd4c6]

Also known as: Monster, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1965

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