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Seiko Caliber 8r28

Seiko Caliber 8R28

Seiko Caliber 8r28

BrandGrand Seiko
Caliber Number8R28, 8R28A
Movement TypeAutomatic
Power Reserve45 hours
Vibrations Per Hour28,800 bph
FunctionsHours, minutes, small seconds at 3:00, central chronograph seconds, 30 minutes counter at 9:00, 12 hours counter at 6:00, date between 4:00 and 5:00
Country of ManufactureJapan
Known ModelsAnanta SRQ011

The Seiko caliber 8R28 is an automatic chronograph movement with 34 jewels, a power reserve of 45+ hours, and beats at 28,800 vph. It has a column wheel and vertical clutch. This movement is entirely made in Japan.

The caliber 8R28 pictured was found in a Seiko Ananta model SRQ011.

Seiko Caliber 8r28 Watch

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