Up for sale is a beautiful classic: the Cartier Santos 100 Medium (Reference 2878) in two-tone stainless steel and 18k yellow gold. Originally introduced to celebrate the 100th anniversary of the legendary Santos silhouette, this midsize variant offers a perfect, substantial modern wrist presence that wears larger than its numbers suggest due to the square case architecture. The watch is mounted on an original brown Cartier alligator strap paired with the signature heavy-duty, two-tone butterfly deployant clasp. Estimated production period for this generation falls within the late 2000s to mid-2010s.

Condition: Bezel: The 18k yellow gold bezel shows honest, standard wear from careful use. There are light surface hairlines and minor scuffs evenly distributed across the polished surfaces, but no deep dings or heavy gouges. Crystal: The curved sapphire crystal is pristine and completely clear of scratches or chips. Case: The brushed stainless steel case flanks and lugs retain their crisp factory bevels and deep satin finish, showing only very faint signs of wear. Strap & Clasp: The original alligator strap has plenty of life left with good structural integrity and expected darkening on the inner lining. The heavy stainless and gold buckle functions precisely, locking down tight.

Authenticity & Movement Health: Movement is the automatic Cartier Calibre 076 (ETA-based, reliable, and easily serviceable). Verified for authenticity and performance: Matching Serials: Yes, the crisp caseback engraving displays the matching serial and reference 2878, cleanly aligning with internal specifications. Beat Rate: Timegrapher confirms excellent health, ticking away beautifully at the correct 28,800 VPH (4Hz). Performance: Amplitude is strong, showing a clean, straight trace with negligible beat error, indicating a healthy gear train that won't need a service anytime soon. Health: Fully demagnetized. Timekeeping is incredibly stable across multiple testing positions.

Specs: Size: 33mm width x 44.2mm lug-to-lug (Wears similarly to a traditional 36-38mm round watch). Movement: Cartier Calibre 076 Automatic Movement. Depth: 100 meters (330 feet). Power Reserve: ~42 Hours. Includes: Watch on original strap, two-tone deployant clasp, and an authentic Cartier presentation outer box/booklet sleeve pictured in the background of the provided images.