At Baselworld next week, Arnold & Son will officially launch the Time Pyramid, which is inspired by vintage regulators and antique British skeleton clocks. The movement, caliber A&S1615, was designed and produced in-house in the brand’s La Chaux-de-Fonds workshops. The movement is hand wound, has 27 jewels, beats at 21,6000 vph (3Hz) and has an 80-hour power reserve.

The large 37 mm diameter skeletonized movement is made of nickel-silver and is rhodium treated. The bridges are chamfered with polished edges, Côtes de Genève, circular satin-finished wheels, blued screws skeletonized nickel-silver movement, rhodium treated with Haute Horlogerie finish: manually chamfered bridges with polished edges, Côtes de Genève, circular satin-finished wheels and blued screws.

“Inspired by the regulators created by John and Roger Arnold over two hundred years ago, and by antique British skeleton clocks, the new Arnold & Son exclusive mechanical Caliber A&S1615 was conceived of, designed and developed in-house at the company’s La Chaux-de-Fonds workshops, Switzerland.

To reflect the spirit of the brand’s rich history, yet with a vigilant eye to the future, Arnold & Son has created a highly cohesive and seductive blend of watchmaking feats in this timepiece that includes regulator, skeleton, vertical linear movement, pyramid placement of components and multi-dimensional depth. The Time Pyramid is part of the Instrument Collection, wherein timepieces are easily identified by their sophisticated dial designs, off-centered hours and minutes indication and visual display of complexities.”


Functions include hours, minutes, seconds and a double power reserve indication. The dial is in sapphire with a circular satin-finished dial frame with chamfered and polished edge. The case is in 18K red gold and is 44.6 mm in diameter with a cambered sapphire with glareproofing on both sides and a see-through case back. Hand-stitched brown or black alligator leather. Water-resistance is 30 meters. (Ref. 1TPAR.S01A.C124A)

Jason Pitsch
Posted by:Jason Pitsch

Jason Pitsch is the Founder of Professional Watches. He appreciates good design and engineering in everything from architecture to automobiles to cameras to clothing. Yet his focus for the past decade has remained consistent on covering just one type of craftsmanship: watchmaking.