The 6R15 is Seiko's mid-range workhorse movement, considered Seiko's answer to the ETA 2824. Features ETACHRON regulator, Spron 510 mainspring, and 50-hour power reserve. Base caliber for the 6R20, 6R21, 6R24, and 6R27. The 6R15D is the latest refined version.
Movement Type
Automatic
Jewel Count
24 jewels
Power Reserve
50h
Frequency
21,600 vph (6 Hz)
Diameter
27.4mm
Height
5.25mm
Display Type
Analog
Rotor Type
bidirectional
Winding
ball bearing
Shock Protection
Diashock
BRAND
SeikoTYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2006CALIBER FAMILY
6RCOUNTRY
JapanALSO KNOWN AS