PARTS CATALOGUE / TECHNICAL GUIDE
Cal. 6R20A
[SPECIFICATIONS]
Cal. No.
Item
Movement
Movement
size
Time indication
Outside diameter
Casing diameter
Height
Additional mechanism
Loss/gain
Number of Jewels
Basic mechanism
Crown
operation
Original
First click
Second click
Vibration per hour
/24
28,800 Hz/hour (8 beats per second)
6.5 mm
l
Mechanical watch
l
3 hands
l
Automatic winding with auxiliary hand winding mechanism
(x 1.0)
Ø 27.4 mm
Ø 27.0 mm
l
Date hand, Day hand, and Power reserve indicator
l
Date/Day correction function
l
Second hand stop mechanism
l
Clearance adjustment
Manual winding (turn clockwise)
Date correction (turn counterclockwise)/Day correction (turn clockwise)
Time setting (turn clockwise to move forward and counterclockwise to
move back)
Second hand stops on the spot
Between -5 seconds and +25 seconds per day
29 jewels
6R20A
l
3 hands (hour, minute and second hands)
l
Date/Day indication
l
Power reserve indicator
