Seiko Cal. 4428 - 923

Seiko 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

Related Models

seikata-wm-bcfea153360e