Seiko Cal. 4540 - 557

The Seiko 4540-557 represents an important milestone in Seiko's 1972 lineup. With its 20mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-21e5f2f294a2]

Also known as: Shogun, UFO

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1972

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