Seiko Cal. 4591 - 222

The 4591-222 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4591 caliber with 21j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-4b798e96e9c9]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1966

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