Seiko Cal. 4584 - 721

Seiko 4584-721

The 4584-721 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4584 caliber with 35j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-81c7dec26789]

Also known as: UFO

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
45mm
Case Thickness
13.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Cream
Jewels
35j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1965

Related Models

seikata-wm-81c7dec26789