At the June 2012 Antiquorum auction in New York, there will be a Jaeger-LeCoultre Eight Day Platinum Perpetual Calendar Skeleton up for sale.
The Eight Day Perpetual Skeleton was made in a limited edition of 100 pieces in 2005. The 950 platinum case measures 42 mm x 12 mm and is fully polished. The case back is transparent which allows a view into the beautifully finished manually wound caliber 876 SQ movement. The movement is skeletonized, rhodium plated and features dual spring barrels (to power the watch for 8-days), blued steel screws, 37 jewels, a straightline lever escapement, a monometallic balance with 4 adjustments, a shock absorber and a self-compensating flat balance spring.
Functions include hours, minutes, moon phase, perpetual calendar, power reserve indicator, day and night indication and 4-digit year display. The dial is transparent with applied white gold Arabic numeral and baton indexes. Transparent subsidiary disc dials for the date, days of week with inner moon phase indication, months, sectors for day and night and power reserve indications. Polished and frosted white gold baton hands. Black leather strap with 18K white gold clasp. Water-resistant 30 meters.