Oris Aquis Pro 4000 Watch 01 400 7777 7155-Set

The Oris Aquis Pro 4000m 49.50mm (Ref. 01 400 7777 7155-Set) represents the most advanced diver’s watch Oris has ever produced through 400-bar water resistance rating validated to 4,000 metres depth alongside the patented Rotation Safety System that locks the bezel during a dive to prevent accidental adjustments. The multi-piece titanium construction with ceramic minutes scale top ring and sapphire domed on both sides with double-sided anti-reflective coating creates a professional instrument specification that goes substantially beyond conventional luxury diving watches.

At 49.50mm with substantial titanium construction, this provides commanding professional diving presence at reduced weight whilst the screw-down crown, screwed titanium caseback with special engravings, and secure folding clasp ensure water resistance integrity throughout extreme depth applications. The 26mm interhorn width and ceramic bezel elements complete a case architecture designed in collaboration with professional divers for operational reliability.

The in-house Calibre 400 delivers an exceptional 120-hour power reserve through five-day automatic construction operating at 28,800 vibrations per hour with anti-magnetic properties, stop-second hacking, and instantaneous date change with corrector function. Oris backs the Calibre 400 with a 10-year service interval and 10-year warranty upon MyOris registration, reflecting genuine confidence in the movement’s long-term reliability.

The domed sapphire crystal with double-sided anti-reflective coating ensures optimal clarity at depth whilst the titanium bracelet provides appropriate material consistency with the case construction. The Aquis Pro 4000m set includes additional strap options for versatile presentation beyond professional diving applications.