Seiko Cal. 4525 - 528

The 4525-528 is a sought-after Quartz piece from Seiko's golden era. With its 18mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-be3764bef04c]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1981

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