Seiko Cal. 4420 - 329

The 4420-329 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4420 caliber with 27j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-bdaa635a85c4]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1999

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