Patek Philippe 5905P-014 Annual Calendar Chronograph Green Dial Limited Edition, 5905P014, Limited Edition of 25 total pieces available only through Irelands Weir & Sons Jewelers in Dublin to commemorate the companys 150th anniversary, Platinum case on a green alligator strap with a matching platinum tang buckle, automatic Patek Philippe caliber ch28-250 QA 24h movement, annual calendar displayed through the three apertures between 10 and 2 oclock, flyback chronograph, unique Kelly green dial with applied white gold numerals, sapphire crystal, display back engraved around the perimeter with "WEIR & SONS" and "150th Anniversary", size 42mm, thickness 13.8mm, also owned by collectors like Conor Mcgregor and Matt Damon, Like New with Weir & Sons commemorative box, set of white gold cufflinks, large Patek Philippe folio, and papers dated 2020.

This is a platinum Patek Philippe Annual Calendar Chronograph Green Dial Limited Edition, reference 5905P-014. Produced in a limited edition of 25 total pieces to commemorate the 150th anniversary of Weir & Sons Jewellers in Dublin. It has a green alligator leather strap with a platinum tang buckle, and a scratch resistant sapphire crystal. There is an exhibition sapphire display case back engraved around the perimeter with "WEIR & SONS" and "150th Anniversary", rectangular fly back chronograph pushbuttons, and three correctors on the left side of the case for adjusting the calendar. The 42mm diameter solid three-body case, downturned lugs, and angled bezel are polished. The dial is Kelly green with applied white gold faceted baton hour markers and luminous dot indices. A minute/one-fifth second track surrounds the perimeter. It has white gold alpha hands with luminous inserts, and a center sweep chronograph hand. There are three trapezoid aperture windows f or the annual calendar, including the day at 10 oclock, the date at 12 oclock, and the month at 2. There is a subsidiary dial at 6 oclock for the constant seconds with an inset day/night indicator. Its water resistant to 30 meters/100 feet and it has a 56-hour power reserve at full wind. The 13.8mm thick case, dial, and movement are all signed.

The mechanical automatic self-winding Pate Philippe caliber CH 28-520 QA 24H movement is rhodium-plated with fausses cotes embellishment. Its stamped with the Seal of Geneva quality mark and the Patek Philippe seal. Its constructed with 37 jewels, 402 components, and a shock absorber device. It includes a straight-line lever escapement, a Gyromax balance thats adjusted to heat, cold, isochronism and 5 positions, and a Spiromax balance spring. It has a 21K gold rotor with oil-free ball bearing and zirconium balls. The mechanism oscillates at a frequency of 28,800 vph (4Hz).

Patek Philippe produced its first self-winding chronograph in 2006. This Patek Philippe Annual Calendar Chronograph, reference 5905P-014, made its debut in 2019 to commemorate the 150th anniversary of Weir & Sons Jewellers.