Moritz Grossmann TREMBLAGE Green – Limited Edition Watch

The beauty of many millennia of fossilisation. The fiery shades of conifers in autumn. The radiant translucency of resin. Baltic amber reveals the richness of life, the complexity of nature and the magic of the passing of time. This rare and challenging fossilised resin is showcased in all its splendour on HM Steel Amber. It adorns the almost bare dial, framed by an ultra-thin steel case. Arnold & Son plays a new hand and continues to innovate in the field of exceptional materials.

Arnold & Son is opening a new chapter in its collections of materials. After timepieces featuring charoite, specular hematite and even meteorite, a one-off piece from the Double Tourbillon collection played host to the glistening pale yellow hues of Baltic amber for the very first time. Difficult to source and challenging to work, it took the house several months to find the precious fossil needed to produce the 38 HM Steel Amber timepieces.

A harmoniously arranged skeletonised calibre with an evolved and subtle watchmaking style. Arnold & Son has reworked its Nebula collection, giving it a more striking case with a universal diameter of 40 mm while retaining its remarkably finished movement and unique abundance of watchmaking tradition. Two versions – one with a rhodium-plated and black calibre, the other with golden accents – ensure that the Nebula 40 Steel shines bright. The aesthetics of the Nebula collection are unlike any other skeleton: its structure conveys watchmaking spirit, its style expresses unique elegance, and the overall effect is one of outstanding finesse.

The case of the Nebula collection has been redesigned, modernised and refined. With streamlined lugs, a softly rounded bezel, a more vertical case middle and a diameter of 40 mm in harmony with its thickness of just 9.10 mm, this steel case opens a new chapter for the collection. Featuring the A&S5201 skeletonised calibre offering an ultra-graphic layout, Nebula retains its identity as a watch whose movement fascinates, captivates and draws the eye into its depths.

The finesse of curves With its graceful curves and wide apertures, Ultrathin Tourbillon Skeleton also stands out for its slimness. Its new case, with a diameter of 41.5 mm and a thickness of 8.4 mm, presents the flying tourbillon calibre in its purest expression. The Ultrathin Tourbillon Skeleton collection, adorned in red gold or platinum, is issued in two limited series featuring 28 watches apiece. Arnold & Son continues its tour of the Ultrathin Tourbillon collection. The A&S8320 calibre unveils its curves, apertures and details within a 41.5 mm case in either red gold (5N) or platinum (PT 950), each released in a run of 28 timepieces. Encased in this precious housing, Arnold & Son’s flying tourbillon stands out for its finesse and precision. Finesse, because at just 3.3 mm thick, it is one of the slimmest skeleton tourbillon calibres in existence. Precision, because this one-minute flying tourbillon is assembled with a variable-inertia balance for enhanced calibration stability.

Featuring a platinum case and bracelet with an 18k white gold movement and dial, C by Romain Gauthier Platinum Edition Bracelet resonates with the most discerning collectors in the watchmaking world. Romain brings a touch of refinement to this timepiece with a sporty profile and assertive character, a combination of noble materials that reveals a traditional side to this very modern timepiece.

The C by Romain Gauthier Platinum Edition Bracelet stands out for its elegance and ultimate level of refinement, beyond the precious character that platinum brings, the bracelet design highlights the textures and finishing techniques that make this timepiece more luminous and prestigious.

In keeping with Romain's vision - The Evolution of Tradition - the bracelet requires a high level of craftsmanship and hand finishing. Each link is composed of high polished and satin brushed surfaces by hand, highlighting the interplay of light and reflecting the artistry and technical nature of the bracelet and the piece in general.

Conceived as an integral element of the whole timepiece, the bracelet was designed to be one with the case - “The bracelet is the case, and the case is the bracelet” says Romain. This desire is reflected in the fusion of these two elements that cannot be dissociated. Inspired by the finger bridges style, the design of the movement follows the watchmaking history of the Swiss Vallée de Joux, with a modern approach, reflecting Romain's vision of the evolution of tradition.

As a non-limited edition, the Platinum Edition Bracelet can be personalized and customized to reflect each collector’s personality and taste.

This is not just a new timepiece — it’s a statement, a revolution, a new era. The PULSE One is the first of its kind, the birth of a new family, and most importantly, the bold next step in the Chronoswiss legacy.

Designed and crafted in Lucerne, this is "Modern Mechanical" in its purest form. Known for defying convention, the watchmakers at Chronoswiss have once again pushed the boundaries of mechanical artistry. For Watches & Wonders 2025, Chronoswiss has re- visioned, re-engineered, and redefined its core DNA. The result? A full-titanium powerhouse that pulses with precision, energy, and audacity - a true mechanical marvel forged by hand.