Seiko Cal. 4540 - 563

The Seiko 4540-563 represents an important milestone in Seiko's 1982 lineup. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-f2af80d3fa51]

Also known as: Bullhead, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1982

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