Seiko Cal. 4520 - 172

The Seiko 4520-172 represents an important milestone in Seiko's 1984 lineup. With its 18mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-7f49bfd5b454]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1984

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