Seiko Cal. 4578 - 999

Seiko 4578-999

The 4578-999 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4578 caliber with 27j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-b6f5dde9fb57]

Also known as: UFO, Navigator

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
46mm
Case Thickness
8.8mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
White
Jewels
27j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1993

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