Blancpain Fifty Fathoms Bathyscaphe 5000-0130-B52A

About This Watch

The Blancpain Fifty Fathoms Bathyscaphe is the more compact, versatile member of the Fifty Fathoms family, designed as a daily-wear dive watch that transitions effortlessly from underwater to the office. At 43mm, it is 2mm smaller than the standard Fifty Fathoms and notably thinner at 13.4mm, making it significantly more comfortable under a shirt cuff. The name references the Bathyscaphe deep-sea submersible that explored the ocean's depths in the 1950s. Despite its more restrained dimensions, the Bathyscaphe houses the same caliber 1315 as its larger sibling: a triple-barrel automatic movement with 120-hour power reserve and silicon hairspring. The ceramic bezel insert, luminous markers, and 300-meter water resistance maintain full dive watch credibility. The overall aesthetic is cleaner and more modern than the standard Fifty Fathoms, with a more integrated look to the case and lugs. For many Blancpain collectors, the Bathyscaphe represents the sweet spot: it offers the same mechanical excellence and heritage in a package that is more practical for everyday wear.