Specifications

Cal.	6R20 / 6R21	6R24	6R27
1. Features	6 hands (Time display (Hour, minute and seconds hands), date hand, day hand and power reserve indicator)		5 hands (Time display (Hour, minute and seconds hands), date hand and power reserve indicator)
2. Vibrations per hour	28,800 vibrations/hour (8 vibrations/sec)
3. Loss/gain (daily rate)	+25 to -15 seconds at normal temperature range Only if worn on the wrist in a temperature range of 5°C to 35°C
4. Driving system	Automatic winding type with manual winding mechanism
5. Duration	Approx. 45 hours
6. Jewels	29 jewels	31 jewels	29 jewels

The accuracy above is factory-adjusted.

Due to the characteristics of mechanical watches, any actual daily rate may not fall within the range of time accuracy specified above dependent on the conditions of use, such as the length of time during which the watch is worn on the wrist, temperature, arm movement, and whether the mainspring is wound up fully or not, etc.