Seiko Cal. 4540 - 520

The Seiko 4540-520 represents an important milestone in Seiko's 1980 lineup. With its 22mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-3ec40cd391a6]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1980

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