Arnold & Son HM Perpetual Moon ref.1GLAS.B01A.C122S from 2017

In true Arnold & Son tradition, the brand has launched one of the most attractive and accurate moon phase watches. The HM Perpetual Moon, with one of the largest moon phase apertures on the market, rightfully joins the royal Arnold & Son collection. The Royal Collection is inspired by watches created in the early life of John Arnold and pays homage to the watches he produced for King George III and members of the royal court. Watches from the Royal Collection demonstrate the brand's prowess in traditional watchmaking and classical decorative arts.

The sophisticated HM Perpetual Moon is, indeed, a superb example of Arnold & Son's technical and artistic excellence. From the inside out, this new timepiece - with rich guilloché dials and three-dimensional big moon - surprises and delights. The 42 mm case is created in either 18-carat red gold or in stainless steel and houses the exclusive Arnold & Son mechanical hand-wound movement, the calibre A&S1512. The 27 jewel calibre offers one of the most accurate moon phases on the market, with only one day's deviation every 122 years - at which point a single push on the corrector will keep it in sync for another 122 years. The calibre is also equipped with a double barrel to yield 90 hours of power reserve.

Brand: Arnold & Son
Retail Price: $17,000 USD
Model:HM Perpetual Moon
Reference: 1GLAS.B01A.C122S
Year of Manufacture: 2017
Material: Steel
Dimensions: 42mm
Crystal Material: Sapphire
Complications: Time and double Moon Phase on front and back
Luminescent Material: No
Movement: Manual Winding
Caliber: A&S1512
Strap Measurement: 20mm
Mechanical Operation Warranty: 6 Months

Comments: Watch in excellent conditions, missing original buckle.