Seiko Cal. 4428 - 272

The Seiko 4428-272 represents an important milestone in Seiko's 1975 lineup. Powered by the 4428 caliber with 26j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-dc12fa9c7bdf]

Also known as: Panda

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1975

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