Seiko Cal. 4520 - 370

The Seiko 4520-370 represents an important milestone in Seiko's 1977 lineup. With its 18mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-5a4126ef8bd7]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1977

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