Seiko Cal. 4540 - 364

The Seiko 4540-364 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e68dc524571a]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1981

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