Patek Philippe caliber 240 C LU CL LCSO
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| Brand: | Patek Philippe |
|---|---|
| Reference: | 240 C LU CL LCSO |
| Base: | Patek Philippe 240 |
| Movement: | Automatic |
| Display: | Analog |
| Diameter: | 38.00 |
| Jewels: | 51 |
| Reserve: | 48 |
| Frequency: | 21600 |
| Date: | Date |
| Hands: | Hours, Minutes |
| Astronomical: | Moonphase, Sky chart, Moon position / rising time, Sun position / rising time |
240 C LU CL LCSO description
The Patek Philippe calibre 240 C LU CL LCSO is a self-winding astronomical movement developed for the Celestial, integrating a sky chart display with indications for sunrise and sunset times, summer-time and winter-time correction, mean solar time, date, moon phases, the meridian, the time of meridian passage of Sirius and of the Moon, and the angular motion of the Moon. Built on the ultra-thin calibre 240 architecture, it combines these displays within a movement measuring 38 mm in diameter and 7.93 mm in thickness.
The calibre is wound by an off-centre 22K gold mini-rotor and offers a power reserve ranging from a minimum of 38 hours to a maximum of 48 hours. It consists of 426 parts, uses 51 jewels, and operates at 21,600 semi-oscillations per hour. Its regulating organs include a Gyromax balance and a Spiromax balance spring, and the movement bears the Patek Philippe Seal.
What distinguishes calibre 240 C LU CL LCSO is the extent of its astronomical display system. The sapphire-crystal dial is used to show the configuration of the sky in the northern hemisphere, with an ellipse indicating the portion of the sky visible from Geneva and from other locations at the same latitude. In addition to the sky chart itself, the movement incorporates separate mechanisms for sunrise and sunset indications and for correction between summer and winter time. According to the supplied material, the development of this calibre took more than five years and led to the filing of six patents.
Within Patek Philippe’s movement range, calibre 240 C LU CL LCSO is notable for combining the thin automatic base of the calibre 240 family with a highly specific astronomical display package, rather than a conventional calendar or chronograph complication.
