The Blancpain Fifty Fathoms X Fathoms, reference 5018 1230 64A, represents the pinnacle of mechanical dive watch engineering. Housed in a bold 55.6 mm titanium case, this timepiece is purpose-built for professional divers who demand uncompromising performance. Its striking black dial features highly legible luminous markers and hands, surrounded by a unidirectional sapphire bezel for secure dive timing. Engineered for a depth rating of 300 meters, the X Fathoms integrates cutting-edge functionality into a visually commanding design, staying true to Blancpain’s pioneering spirit in underwater watchmaking. At the heart of the watch is the Caliber 9918B, an automatic movement derived from the robust Caliber 1315. This complex mechanism features a mechanical depth gauge capable of measuring depths up to 90 meters, with precision scaling for both 0–15 meters and 0–90 meters. The gauge employs a high-tech amorphous metal membrane for sensing pressure changes, transmitted through a rack-and-pinion system for real-time readings. Additional diving features include a retrograde 5-minute decompression timer, maximum depth memory with a secured reset system, and a helium escape valve—making this a serious tool for deep-sea exploration. Completing the X Fathoms is a unique black rubber strap composed of 14 articulated segments, engineered to flex with wrist movement and allow optimal water flow to the depth sensor. The titanium folding clasp ensures secure wear in all underwater conditions. This timepiece is not just a statement of luxury—it is a professional-grade diving instrument that pushes the limits of horological innovation. As the most complex mechanical dive watch ever created by Blancpain, the X Fathoms is a true testament to the brand’s leadership in marine timekeeping.

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.