Seiko Cal. 4490 - 525

Seiko 4490-525

The 4490-525 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4490 caliber with 24j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-32bafc70963f]

Also known as: Sumo

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
14.0mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
21,600 bph
Power Reserve
45 hours
Year
1977

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