Seiko Cal. 4443 - 491

Seiko 4443-491

The 4443-491 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4443 caliber with 27j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-9903c07388e1]

Also known as: UFO, Silverwave

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
14.0mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
140m
Dial Color
Black
Jewels
27j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1973

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seikata-wm-9903c07388e1