Seiko Cal. 4540 - 221

The Seiko 4540-221 represents an important milestone in Seiko's 1985 lineup. Powered by the 4540 caliber with 21j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-e148d19788c5]

Also known as: UFO, Arnie

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1985

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