THOMAS PRESCHER –The inventor of the flying Triple Axis Tourbillon presents the PERPETUAL CALENDAR QP 1
Hand made perpetual calendar with instantly jumping central indication of all calendar data, including leap year indication.
The „QP 1“ has all hands located on one central axle. The available space on the round dial is optimally used by concentric circles.
All indications are clearly arranged and well readable.
The watch has a power reserve of 36 hours and its case is made from 18-carat gold or platinum.
All parts of the mechanism, dial, hands and case are developed and made in house.
· Perpetual calendar
· Central indication of all calendar data
· Instantly changing indications
· Indication of leap year
· Hours – Index
· Date – 1-31
· Minutes – Index
· Month – Index
· Day – 1-7
· Leap Year – Window at 6 o’clock
Diameter – 34.3 mm, including module for 39mm case
Height – 6.85 mm, including module
Winding – automatic
Power reserve – 36 hours
Number of jewels – 25 bearing jewels
Frequency – 28800 beats per hour (4Hz)
Escapement – Swiss lever escapement
Balance spring – flat hairspring
Shock protection – incabloc
Decoration – completely hand-engraved and gold-plated
Rotor – Oscillating weight platinum
Case material – 18-karat gold or PT950
Diameter – 39mm or 43mm
Height – ca.13 mm
Glass – front: domed sapphire glass,
– back: flat sapphire glass
Dial material – to the client’s wishes
Hands – to the client’s wishes
Index plates – 18-karat gold
Name plate – 18-karat gold
Strap – hand-cut and -sewn alligator skin uppers and lowers
Buckle – 18-karat gold or PT 950
See Thomas Prescher at “Baselworld 2009”, Hall 5.1 Stand B01, from 25th March to 4th April 2009