Berneron Mirage Sienna: Asymmetry Perfected

The Mirage Sienna isn’t a usual watch by any metrics. Its 34 x 38mm case breaks free from conventional circular forms, letting the mechanics dictate the unique shape. This deliberate asymmetry creates a harmony that feels organic, imperfect, and undeniably elegant. Crafted entirely from 18K gold – including the case, dial, and even the movement itself – this piece radiates discreet luxury with every detail.

At just 7mm thick, the watch offers a svelte profile that hugs the wrist, while its visible height of only 4.9mm highlights Berneron’s pursuit of finesse. Whether worn with formal attire or as a statement piece, the Mirage Sienna exudes quiet confidence.

Inside beats the Caliber 233, a hand-wound movement that defies tradition. With a reversed handset – placing the minute hand beneath the hour hand – it achieves a thinner profile and enhances legibility. The movement’s free-form layout optimises performance with a larger barrel, providing an impressive 72-hour power reserve.

Every component is meticulously decorated, from guillochage on the bridges to anglage on the edges, showcasing a true passion for the artisanal craft. And yes, it’s all gold – the movement’s main plate and bridges are really made of 18K gold, a rarity in the world of horology.

The watch’s name and rich hue pay homage to the pigment Sienna, first used in prehistoric cave art and perfected during the Renaissance. The reddish-brown tones of heated raw Sienna echo the historical depth and artistry that the Mirage Sienna embodies. Just like the pigment’s evolution, this watch feels both rooted in history and unapologetically modern.

Priced at CHF 61,000, the Mirage Sienna is as exclusive as it gets. By blending asymmetry, gold construction, and a tribute to artistry, Berneron has created a timepiece that speaks to connoisseurs of both fine horology and timeless design. Currently sold out, the order book won’t reopen until 2025, giving collectors ample time to anticipate the next chapter in this masterpiece’s story.