Atelier de Chronometrie Movement Finishing

Key Points from the Discussion

• Key indicators of high-quality movement finishing include free-hand engraving, well-rounded anglage with interior angles (free of machine striations), and black polishing on large components.
• AdC's anglage is often considered superior to Moritz Grossmann, Lange, and Urban Jürgensen for equivalent time-only pieces, with MG excelling in engraving and Lange offering prominent anglage on its 3/4 plate movements.
• AdC's approach is likened to Singer's work on Porsche cars, focusing on maximizing hand finishing and adjustment of classic architecture, often using historically important calibers like the Omega 266 as a base.
• While Lange offers technical intrigue and variety (remontoires, jumping seconds), AdC prioritizes turning up the performance of classic architecture with maximum hand finishing, developing a subtle house style not constrained by national traditions.
• Some critiques suggest that certain aspects of AdC's finishing, such as frosting, inconsistent perlage, and treatment around screw heads, appear less refined or 'gauche' compared to expectations for high-end movements.
• Despite some criticisms, AdC's finishing is generally held in higher regard than Lange or Moritz Grossmann due to their production processes and numbers, with their competitive set being independent makers like Romain Gauthier and Kari Voutilainen.