Seiko Cal. 4520 - 488

Released in 1972, the Cal. 4520 with design code 488 was part of Seiko's domestic market collection. With its 21mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-d0514ee27aaa]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1972

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