Seiko Cal. 5284 - 587

Seiko 5284-587

The 5284-587 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5284 caliber with 20j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-8cb9e158a395]

Also known as: Baby Tuna, Flighty

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
43mm
Case Thickness
12.8mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Cream
Jewels
20j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1979

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