Seiko Cal. 4540 - 220

The Seiko 4540-220 represents an important milestone in Seiko's 1997 lineup. Powered by the 4540 caliber with 35j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-189a7060ed92]

Also known as: UFO, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1997

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