Richard Mille RM 055 Bubba Watson — ultra-light, high-tech manual skeleton watch with white ATZ ceramic bezel, grade 5 titanium movement, and white rubber strap designed for elite sport performance.
Key Features
• White ATZ ceramic bezel (excellent scratch resistance & stable color)
• Grade 5 titanium case middle & back with protective white rubber casing
• Skeletonized architecture shows intricate mechanics
• White rubber strap with comfortable fit
• Tonneau-shaped case ~49.90 × 42.70 × ~13.05 mm
• Water resistance ~30 m
Movement
• Manual-winding Calibre RMUL2 skeletonized movement
• Hours, minutes, seconds
• Free-sprung balance with variable inertia for shock reliability
• Double-barrel system for stable torque delivery
• Power reserve ~55 hours
Dial
• Open-worked skeletonized dial for full view of movement
• Luminous hands & markers for readability
• Sapphire crystal with anti-reflective coating
Warranty
• Standard Richard Mille manufacturer warranty (via authorized retailer; terms vary) (not usually listed in public specs)
Weight
• Extremely lightweight overall — movement alone ~4.3 grams, contributing to comfort and sport performance.



