The Blancpain Fifty Fathoms Bathyscaphe Quantième Complet Phases de Lune, reference 5054-0130-NABA, is a refined expression of contemporary haute horlogerie, perfectly suited for those who demand both technical performance and aesthetic elegance. The watch features a 43.6 mm satin-brushed black ceramic case, known for its lightweight properties and exceptional scratch resistance. Its sunburst black dial is complemented by Super-LumiNova-coated hands and hour markers, ensuring optimal legibility in any environment. A unidirectional ceramic bezel with a Liquidmetal™ scale adds functional utility for divers while maintaining a sleek, understated look. At its core is Blancpain’s in-house Caliber 6654.P.4, a self-winding mechanical movement composed of 321 components and 28 jewels. This high-performance caliber operates at 4 Hz (28,800 vibrations per hour) and delivers a power reserve of 72 hours via its twin-barrel construction. Technically sophisticated, the movement supports a complete calendar (day, date, and month) along with a moon phase display, featuring the brand’s poetic “smiling moon.” To preserve the integrity of the case’s lines, the calendar corrector pushers are ingeniously positioned beneath the lugs. The transparent sapphire case back offers a view of the movement's fine finishing, including Côtes de Genève decoration and a signature engraved rotor. This model is water-resistant to 300 meters, living up to its Fifty Fathoms diving heritage while offering all the comfort and versatility of a modern luxury timepiece. The 5054-0130-NABA is paired with a durable black NATO strap, secured by a pin buckle that enhances both its casual character and functional reliability. Ideal for collectors seeking a bold, all-black aesthetic with advanced complications, this watch represents the pinnacle of Blancpain’s ability to merge tool-watch functionality with classic Swiss craftsmanship.

Your deBoulle order will arrive securely via courier, requiring an adult's signature and ID upon delivery. Currently, we can't offer specific time slots, but you'll receive tracking details and estimated delivery dates via email. Delivery within the United States is complimentary. Items are discreetly packaged in branded deBoulle boxes with unmarked external packaging for security. If missed, deliveries can be rescheduled through our Ambassador or courier directly. You can also opt for in-store collection at our Dallas or Houston locations, where you or an authorized individual can pick up your order with proper identification and order confirmation.

Returns or exchanges of your online order can be made within 30 days, either by contacting a deBoulle Ambassador to arrange complimentary online collection or by visiting our Dallas or Houston stores. All returns and exchanges require items to pass a quality control inspection, and refunds typically appear within 10 business days. Customized, bespoke, engraved, or preowned timepieces cannot be returned or exchanged. Gift recipients may return or exchange items, though refunds will be credited to the original purchaser. Items must be unworn, pristine, and include original packaging and certificates.