Seiko Cal. 4540 - 273

The Seiko 4540-273 represents an important milestone in Seiko's 1981 lineup. With its 18mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-4c4231e0f511]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1981

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