Greubel Forsey X Philippe Dufour X Michel Boulanger Naissance d’Une Montre 1 N°1/11 (2017)

Case is 45mm diameter, 18k white gold case, sapphire caseback. Dial is openworked. Movement is manual, hand made movement (Michel Boulanger). Bracelet/strap is leather. Clasp/buckle is 18k white gold Naissance d’Une Montre pin buckle engraved 01/11. Signed: Case and buckle signed Naissance d’Une Montre, dial signed Greubel Forsey and Philippe Dufour, movement signed Michel Boulanger. Accessories: Accompanied by Owner’s Book/ Certificate of Authenticity, leather folder, fitted box, loup and cleaning cloth. Estimate at CHF 120k to 240k.  Sold for CHF 1,651,000 at Phillips Auctions May 10 2026 Geneva