Seiko Cal. 4420 - 828

The Seiko 4420-828 represents an important milestone in Seiko's 1999 lineup. Powered by the 4420 caliber with 17j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-5864117f46ca]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1999

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