Seiko Cal. 4520 - 150

The Seiko 4520-150 represents an important milestone in Seiko's 1985 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-00a5a2f5cd5d]

Also known as: Tuna, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1985

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