36. 36Y Roger Dubuis. A fine platinum bi-retrograde perpetual calendar manual wind chronograph wristwatch with moon phases and leap year indication Roger Dubuis. A fine platinum bracelet chronograph (950) bi-retrograde perpetual calendar with moon phases and leap year indication mechanical movement Model: Hommage Chronograph Bi-Retrograde Perpetual Calendar Date: Circa 1999 Movement: 21-jewel Cal.RD5637 manual, adjusted to 5 positions, No.2 Dial: White, applied polished dot hour markers, black outer minute track with 1/5th second divisions, sunken subsidiary dials at 3 and 9 for running seconds and 30 minute recording, month and leap year indication at 12, moon phases indication at 6, retrograde day and date sectors between 2 and 4, and 8 and 10, polished lance hands, blued steel day, date and centre chronograph hands Case: Brushed and polished tonneau form, exhibition screw down back, crown flanked by twin pushers, quick set buttons to band at 5, 7 and 10 Strap/Bracelet: Blue alligator leather Buckle/Clasp: Signed platinum folding clasp Signed: Case, dial & movement Size: 37mm Weight: 87,91g Accompaniments: Roger Dubuis box, outer card Mr. Roger Dubuis established his own brand in 1995, it was a result of an illustrious career as a watchmaker in prestigious manufacturers such as Patek Philippe (where he spent over 20 years) in the complications department. Regarded as one of the most respected Geneva-based watchmakers in his era, early Roger Dubuis timepieces are reminiscent of his time at Patek Philippe.