The new Arnold & Son TES Tourbillon has a beautiful tourbillon carriage visible at 6 o’clock on the dial side of this watch, but it is the sapphire crystal barrel bridge — which allows a perfect view of the open worked barrel and wheels — that sets this timepiece apart.

The 18K red gold case, with stepped bezel, measures 44 mm in diameter, and features a fully polished finish, except on the sides of the lugs which are brushed. A cambered sapphire crystal, with an anti-reflective coating on both sides, protects the dial side. The caseback features a flat sapphire crystal.


Uniquely, the main plate is in a anthracite grey finish. It is decorated with an old guilloché pattern that is found on the cases of antique Arnold & Son pocket watches. The main plate is also skeletonzied around the barrel and the tourbillon carriage.

The watch is powered by an in-house hand-wound 3Hz A&S8100 caliber, with 19 jewels and an 80-hour power reserve. The nickel-silver movement features a sapphire crystal barrel bridge, as we mentioned above, as well as a rose gold treated bridges that have been hand chamfered with polished edges. The wheels have been circular satin-finished, and are hand-chamfered with polished edges. Everything is finished to perfection, from the screwed gold chatons, to the tourbillon cage and bridge which are mirror-polished, to the screws that are bevelled and have mirror-polished heads.


The Arnold & Son TES Tourbillon displays hours, minutes, a 60-second tourbillon. Water-resistance is 30 meters. This timepiece will be produced in a limited edition of 28 pieces. It is paired with a hand-stitched black or brown alligator leather. (Ref. 1SJAR.V01A.C112A) Learn more at Arnold & Son.

Posted by:Jason Pitsch

Jason Pitsch is the Founder of Professional Watches. He appreciates good craftsmanship 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: watchmaking.