Patek Philippe Perpetual Calendar Chronograph 18K Rose Gold

More about Perpetual Calendar Chronograph 18K Rose Gold

This is an 18K rose gold Patek Philippe Perpetual Calendar Chronograph 3970/ER. It has a leather strap with a matching 18K rose gold deployment clasp, and a scratch resistant sapphire crystal The 36mm diameter solid three-body case, downturned lugs, and rounded stepped bezel are polished. There is a screwed-down sapphire crystal display back with a setting pin and an additional case back. It has a satiné silver dial with applied yellow gold faceted baton hour indexes and feuille hands. A grand complication watch, it has a round-button chronograph and perpetual calendar with subsidiary dials for the seconds and for 24 hours at 9 o'clock, the 30-minute register at 3 o'clock, and the moon phase and days of the month at 6. The day of the week and the month are indicated in twin window apertures at 12. It's water resistant to 25 meters/90 feet, and the 12.9mm thick case, dial, and movement are all signed. The manual winding caliber CH 27-70 Q movement is rhodium-plated with fausses cotes embellishment, and the stamp of the Seal of Geneva quality mark. It's constructed with 24 jewels, a shock absorber mechanism, and a straight-line lever escapement. It includes a self-compensating Breguet balance spring, and the patented Patek Philippe Gyromax balance that compensates for cold, heat, isochronism, and 8 positions. The case, dial, and movement are all signed. In 1925 Patek Philippe brought out the first perpetual calendar wristwatch that automatically adjusted itself for the months with only 30 or 28 days, as well as for leap years. This was a grand complication that was a rare specialty. In 1941, at the beginning of World War II, Patek started regular manufacture of the perpetual calendar watches, a staple that helped the company to survive the war.

The European Watch Company Process

TRUST. SERVICE & QUALITY

Trusted since 1993, European Watch Company maintains the highest standards in the industry. Our team of expert watchmakers meticulously inspect every timepiece prior to it being listed for sale. This five-position testing assures the buyer of each watch’s verified provenance, its optimal mechanical condition with authenticated parts, and exceptional “like new” cosmetic appearance. When it comes to quality, we curate only the finest timepieces. So that when they are delivered, the only thing to focus on is your excitement. Our 5-star reputation was earned over three decades of hard work and integrity. To provide further peace of mind, we provide a 1- year limited warranty on all our timepieces. We are confident that we can find you the perfect watch to cherish and enjoy.