Blancpain Fifty Fathoms Bathyscaphe Quantième Complet Phases de Lune 5054 3640 O52B

The Blancpain Fifty Fathoms Bathyscaphe Quantième Complet Phases de Lune, reference 5054-3640-O52B, exemplifies a harmonious blend of technical mastery and luxurious craftsmanship. Housed in a 43 mm satin-brushed 18K red gold case, the watch offers a warm, rich tone that contrasts beautifully with its deep sunburst blue dial. Luminous hands and hour markers ensure optimal legibility, while the unidirectional rotating bezel, featuring a blue ceramic insert with Ceragold™ markers, enhances both function and visual refinement. This model retains the unmistakable diving DNA of the Fifty Fathoms collection while presenting a more elegant, dress-ready interpretation.

At the heart of the timepiece is the Blancpain Caliber 6654.P.4, a self-winding mechanical movement that beats at 28,800 vibrations per hour and provides a 72-hour power reserve. It powers a complete calendar complication—day, date, month—as well as an intricate moon phase display. What sets this watch apart is its practical yet sophisticated design: under-lug correctors allow for seamless calendar adjustments without altering the integrity of the case. A sapphire case back reveals the intricate finishing of the movement, including Côtes de Genève striping and a red gold rotor.

With a water resistance of 300 meters, the 5054-3640-O52B is not only a high-complication watch but also a true diver’s instrument. Paired with a blue sail-canvas strap and a red gold folding clasp, it ensures both comfort and security. This model is ideal for those who demand precision engineering and elevated aesthetics in a single, bold statement piece—perfectly embodying Blancpain’s legacy of innovation and timeless elegance.