Santos-Dumont skeleton watch equipped with a micro-rotor WHSA0031

An exquisite icon of horological mastery, the Santos-Dumont skeleton watch equipped with a micro-rotor WHSA0031 represents the finest tradition of Swiss watchmaking. Crafted by renowned maison Cartier, this distinguished timepiece combines a sculptured 18K Rose Gold case, 31 mm with a precision-engineered Swiss Mechanical Automatic (Self-Winding), delivering commanding wrist presence and timeless sophistication.

Timepiece Highlights & Technical Specifications

• Maison / Brand: Cartier
• Collection: Santos de Cartier
• Model Reference: WHSA0031
• Case Material: 18K Rose Gold
• Case Dimensions: 31 mm
• Movement: Swiss Mechanical Automatic (Self-Winding)
• Condition: Brand New / 100% Authentic Swiss Luxury Timepiece
• Inclusions: Accompanied by CJ Charles Presentation Gift Box & Certified Documentation

Horological Legacy & Wrist Presence

An avant-garde icon of modern industrial design, featuring an instantly recognizable geometric silhouette and integrated bracelet. Its timeless proportions and meticulous finishing make it one of the most celebrated grails in horological history.

Manufacturer & Technical Details

"1904, Louis Cartier granted the wish of the famous Brazilian aviator Alberto Santos Dumont: to be able to tell time while flying. The birth of one of the first ever wristwatches sealed the bonds of friendship between these two pioneers. The rounded angles of the dial, the seamless curve of the horns, and the exposed screws made for an iconic watch that would inspire countless reinterpretations. Product Description: Santos-Dumont micro-rotor skeleton watch Large model 31 mm Automatic mechanical movement 9629 Mc 18K rose gold (750/1000) case Polished blued-steel sword-shaped hands Sapphire crystal and case back Bridges covered in burgundy lacquerBurgundy alligator leather strap and brown alligator leather strap 18K rose gold (750/1000) ardillon buckle Movement dimensions: 23.2 mm Movement thickness: 4.4 mm Balance: 28,800 vibrations/hour Power reserve approx. 44 hours Case dimensions: 31 mm Thickness: 8 mm Water-resistant up to 3 bar (approx. 30 meters/100 feet"

The CJ Charles Jewelers Horology Promise

Serving luxury watch collectors in La Jolla, San Diego and worldwide since 1988, CJ Charles Jewelers is an authorized retailer and specialist in Swiss haute horlogerie. Every pre-owned timepiece is thoroughly inspected, timed on digital vibrograf machines, and certified by our in-house master watchmakers. Your timepiece arrives in our signature luxury gift packaging, backed by complimentary fully insured white-glove shipping and dedicated concierge support.

Specifications above are taken directly from this piece's catalog data.

Complimentary insured shipping on every U.S. order — no minimum, no code. We ship via UPS Ground, FedEx Home Delivery, USPS Priority, fully insured, with signature confirmation on high-value pieces.

Free 30-day returns: unworn pieces in original packaging can be returned within 30 days of delivery for a full refund — we email you a prepaid, insured return label.

Full shipping policy · Full returns policy

Every piece we sell is guaranteed genuine — inspected before dispatch, with serial numbers intact and documentation as described. If any piece were ever proven otherwise, we refund you in full.

Read our Authenticity Promise