Seiko Cal. 4428 - 923

The 4428-923 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4428 caliber with 24j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-bcfea153360e]

Also known as: Rally, Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1985

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