Seiko Cal. 4540 - 966

The Seiko 4540-966 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-722919a78a3a]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1970

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