Editorial
The Big Crown ProPilot Date 41mm is Oris's current-production pilot offering, built around the oversized screw-down crown that gives the line its name and its reason for existing. Reference 01 751 7761 4065 is the steel, black-dial entry that gets the formula right: legible Arabic numerals, a clean date at 3, and a crown sized for gloved hands without theater. It is the honest pilot watch at an honest price.
Oris introduced the modern ProPilot line in the early 2010s as a successor to the original Big Crown references that date back to the 1930s. This 41mm reference with the 751 caliber has been in continuous production since 2014, making it one of Oris's most stable catalog entries. The movement is a modified Sellita SW220-1, a reliable workhorse with a quick-set date and approximately 38 hours of power reserve.
Oris versions of the SW220-1 receive proprietary rotors and finishing but share the same service architecture as the base caliber. No major generational breaks have occurred in this reference; what you see in the 2024 catalog is substantively the same watch as the 2015 version.
The crown is the first thing to inspect: the ProPilot's oversized onion crown is functional but puts more torque stress on the stem than a standard crown, so check for smooth winding and setting with no wobble or grinding. The screw-down mechanism should engage cleanly with a few turns; any cross-threading or resistance suggests wear. Date magnification is minimal on these dials, so buyers who rely on the cyclops lens will notice the absence.
Confirm the caseback gasket has been replaced at service intervals, as the 100m water resistance rating assumes a fresh seal. Bracelet clasp wear is common on pre-owned examples; the integrated folding clasp can develop play and the adjustment pins can back out.
