Seiko Cal. 4520 - 370

This Spring Drive model from 1989 features a 45mm Titanium case. With its 22mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-19fdecc85aac]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1989

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