The RM 16-01 Citron belongs to the Bonbon Collection, the most playful chapter in Richard Mille's history, unveiled at SIHH 2019. Comprising ten models inspired by candies, pastries, and fruit, the collection subverts the brand's hyper-technical reputation with whimsical confectionery imagery — and each model is strictly limited to just 30 pieces worldwide. The Citron, part of the "Fruits" line, renders lemon and orange slices alongside candy beads and stripes, each element hand-painted in acrylic and lacquer with an enamel sugaring effect for startling realism. This combination of extreme scarcity and artistic execution has made the Bonbon pieces among the most sought-after and collectible novelties Richard Mille has ever produced. The rectangular case measures 50.2 x 38 x 9.88mm with a Carbon TPT front bezel and yellow Quartz TPT caseback, joined by a gradient caseband transitioning between the two materials. The skeletonized dial, built in grade-5 titanium with grey Titalyt treatment and a rose gold frame, showcases the hand-painted citrus and candy motifs around a date aperture at six. The self-winding Caliber RM16-01 features a variable-geometry rotor and delivers a 50-hour power reserve, completed by an orange rubber strap with titanium folding clasp. Reference Number: RM 16-01 Model Family: RM 16-01 Movement: Automatic Case Material: Carbon Bracelet Material: Rubber Strap Dial: Openwork Case Dimension: 50mm Year: 2019 Condition: Like New & Unworn Box & Papers: Original Box, Original Papers