Timeless Artistry.

Lambertus is an independent maison founded in MMXXVI. The name is personal - a middle name, carried forward - and the intent is patient: build a small house of considered objects, one chapter at a time.

Chapter I - R&D Phase: R&D-driven straps, compatible with the Royal POP. The Audemars Piguet × Swatch Royal Pop is one of the most discussed objects of the year - a pocket watch in 2026, in eight dials, sold by lottery. Beautiful. Useless on a wrist. We engineered the only accessory it was missing: a strap.

Vulcanized FKM, hand-tuned to the case dimensions. An octagonal holder machined to the millimetre, secured with eight stainless screws. The watch clips in. It clips out. Eight colours, mirrored from the collection.

What follows: pendants in noble materials, the occasional curated vintage piece, and - in time - watches under our own name. No rush. Heirloom in progress.

"We didn't change the watch. We gave it a wrist."

Lambertus is an independent maison. Our Royal POP compatible straps are not affiliated with, endorsed by, or sponsored by Audemars Piguet or Swatch Group.