The 6R21 is similar to 6R20 but with a different power reserve indicator style (9 o'clock aspect vs center aspect). Features pointer-style day/date subdials and 4Hz beat rate. Based on the 6R15 platform with ETACHRON regulator.
Movement Type
Automatic
Jewel Count
29 jewels
Power Reserve
45h
Frequency
28,800 vph (8 Hz)
Diameter
27.4mm
Height
6.15mm
Display Type
Analog
Rotor Type
bidirectional
Winding
Magic Lever
Shock Protection
Diashock
BRAND
SeikoTYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2007CALIBER FAMILY
6RCOUNTRY
JapanALSO KNOWN AS
