We are proud to present an exceptional example of fine Swiss watchmaking: the Girard-Perregaux Richeville Day/Night, reference 27610. This model is a masterclass in asymmetrical dial design and mechanical creativity, housed in the brand's iconic tonneau (cushion-shaped) case. This is not your standard three-hand watch. Instead of a traditional hour hand, it features a "Wandering Hour" complication: a 24-hour disc rotates counter-clockwise, and the current hour is indicated by a fixed arrow at the 12 o'clock position. The disc is split into light and dark sections to provide a clear Day/Night indication at a glance. The watch is in near-perfect condition, appearing virtually as-new with no significant marks on the case or crystal. It has been fitted with a high-quality custom leather strap. Importantly, while the strap is custom, the genuine Girard-Perregaux buckle is included separately, allowing the new owner to pair it with this or any other strap of their choice. Highlights: • Unique Complication: The "Day/Night" wandering hour display is a rare complication that makes this watch stand out in any high-end collection. • Manufacture Movement: Powered by the GP Caliber 3300.09, a sophisticated in-house automatic movement with a power reserve of approximately 46 hours. • Perfect Proportions: The 37mm tonneau case is incredibly ergonomic, sitting elegantly on the wrist and fitting perfectly under a shirt cuff. • Dial Artistry: The silvered dial features beautiful guilloché-style snailed textures, heat-blued hands, and a small seconds sub-dial at 9 o'clock. • Near Mint State: Finding this discontinued reference in such flawless condition is increasingly difficult. Details: • Brand: Girard-Perregaux • Model: Richeville Day/Night • Reference: 27610 • Movement: Automatic GP Caliber 3300.09 (Manufacture) • Case Dimensions: 37mm x 37mm • Functions: Wandering Hours (24h disc), Minutes, Small Seconds, Day/Night Indicator, Power Reserve Indicator • Dial: Silvered with blued steel hands • Crystal: Sapphire (Scratch-resistant) • Caseback: Transparent (Display back) What's Included: • Girard-Perregaux Richeville 27610 Watch (Watch Only) • Custom Leather Strap • Original Girard-Perregaux Buckle (Loose/Included)