Before establishing his brand in 1989, he worked at Audemars Piguet and Breguet for many years, repairing and creating fine works for both names, including the Breguet ref.3130 power reserved and moon phase, the Perpetual calendar ref.3050ba. The Classique Chronograph ref.3237, just to give you an idea about his work during the time, he's a very well-respected watchmaker among watchmakers.