Friday, March 23, 2007

Patek Philippe Minute Repeater

Ref. 5104. Movement: Caliber R 27 PS QR LU. Self-winding mechanical movement. Overall diameter: 28 mm. Height: 7.23 mm. 39 jewels. Power reserve of 38 to 48 hours. 21,600 semi-oscillations per hour (3 Hz). Functions: Two-position crown: - Pulled out: to set time, - Pushed in: to wind watch. Minute repeater:Hour, quarter-hour, and minute strike on two gongs. Small second at 6 o’clock. Indications: Center Hours and minutes. Small second at 6 o’clock. Age of the moon at 6 o’clock. Perpetual Calendar with retrograde date indication. Unusual indication of the day of the week, month, and leap year. An ingenious system patented by Patek Philippe uses sapphire-crystal discs for the calendar. indications, preserving the transparency of the sapphire-crystal dial which reveals the intricate retrograde perpetual calendar mechanism. Each of the three rotating sapphire-crystal discs progressively moves a black metallized rectangle underneath its respective indication in white, creating the contrast needed to make the day, the month, and leap year readable.- Day of the week at 9 o’clock, - Month at 3 o’clock - Retrograde date indicated on perimeter of dial. Leap year indication at 12 o’clock. Case: Platinum 950. Sapphire crystal glass and case back. Case band decorated with 18 ct. red gold inserts. Open work leaf shaped ornament. Dimensions: Diameter 43 mm. Height 12,90 mm. Width between lugs: 20 mm. Strap: Alligator with large rectangular scales in navy-blue, hand-stitched, with 18 mm pin buckle in platinum.