Seiko Cal. 4540 - 322

The Seiko 4540-322 represents an important milestone in Seiko's 1973 lineup. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-05e3859bb6fb]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1973

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