Nephrite jade from Wyoming and a manufacture movement from Schaffhausen.

Stone dials have been seen before in the H.Moser & Cie. line: the brand presented watches with dials made of jade and lapis lazuli last year. The watchmaker combined these surprising stone dials with tantalum cases to create two Endeavour Perpetual Calendar Tantalum models for Govberg Jewelers.

Tantalum and stone are fashionable materials in watchmaking. These dials are associated with 1970s fashion. The combination with tantalum looked quite original back in 2023. But H. Moser & Cie. are still able to surprise: the brand is beginning this year with the Streamliner Tourbillon Wyoming Jade.

The Streamliner with an integrated bracelet is also a nod to luxury sports watches from the 1970s, but it's nothing like the models that sported stone dials back then. H. Moser & Cie. cite speed trains from the 1920s and 1930s as a source of inspiration for the Streamliner.

And now this dynamic "locomotive" has been married with a heavyweight mineral. The resulting watch is interesting to say the least. The watchmaker highlights that their jade is sourced from deposits in the US state of Wyoming, and the material they chose to pair with it is red gold.

American jade has a distinct olive-green tone. The easiest way to appreciate how unique it is is to compare the novelty for 2024 with the perpetual calendar from 2023. It's the same mineral with a completely different tone: intense green compared to soft pastel.

Once a suitable stone has been selected, the watchmaker precision cuts a slice of jade measuring between 1 and 1.2 mm in height using CNC technology.

The dial is then glued to a metal plate, milled to achieve a perfect outer shape, and refined to the desired thickness. Finally, the dial is also polished by hand to eliminate any scratches.

Availability of the Streamliner Tourbillon Wyoming Jade is limited to 100 pieces equipped with an automatic HMC 804 movement, which can be seen through the transparent caseback.

This movement with a flying tourbillon uses a double hairspring developed by Precision Engineering AG — a subsidiary of H. Moser & Cie.