Seiko Cal. 4428 - 350

The 4428-350 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-0fc7872cccbe]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1998

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