Mark Heist is a Swiss Trained professional Watchmaker. He graduated with honors from WOSTEP (Watchmakers of Switzerland Training and Education Program, Neuchatel, Switzerland), an internationally known school for horology, recognized by the industry. He has also received his Certified Watchmaker 21 and Certified Clockmaker by American Watchmaker – Clockmaker’s Institute (AWCI). Since 1991, Mark has specialized in the restoration and service of antique, high-grade and complicated timepieces, specializing in vintage Breitling chronograph restoration. He is also experienced in the discipline of clockmaking, having trained for 3 years prior under his father. This greatly facilitates the service and restoration of complicated or high-grade clocks, such as Atmos, those without a pendulum (balance wheel and hairspring instead) such as French carriage clocks, small desk clocks and aircraft clocks as well.
Mark is a member of the Central Watchmakers Guild of Pennsylvania, National Association of Watch and Clock Collectors (NAWCC) and American Watchmakers – Clockmaker’s Institute (AWCI) and AWCI affiliate chapter Chronometre Club. He also has served as an assessor for WOSTEP’s Partnership Schools for final examinations in the U.S. and for AWCI’s certification exams.
Theresa Heist graduated with honors from West Chester University with a degree in Speech and Communication, with a focus on Business Administration. She handles all administrative duties in the office such as scheduling and processing of watches, spare parts orders, communication and maintains the smooth operation of the workshop.
In 1990 – 91, Mark and Theresa set up and helped organize the After Sales Service facility for Ebel Caribbean, St. Martin F.W.I. Afterward, were employed by Breitling USA in the After Sales Service Department from 1991 to 1994. As the “new” Breitling became better known, more of the older watches came in for service. By 1994, Mark and Theresa were working completely independently from Breitling USA, exclusively providing service/restoration for their vintage, or out of production mechanical watches.
Ronald Pfleger as of June 2007 Ron is enjoying retirement on Cape Cod but is available for consultation and enjoys working here on special projects that usually involve machining and fabrication.
Ron began his watchmaking career at the Bowman Technical School in Lancaster, Pennsylvania. He is also an AWI Certified Master Clockmaker and has built his own clock movement, all parts fabricated. After serving a 4-year tool and die-making apprenticeship with Western Electric, he spent 35 years as a Journeyman Tool and Die Maker for AT&T Micro Electronics, Lucent Technology and later Agere Systems. This experience is a great complement to the workshop for layout design, micro-machining technique and fabrication, which greatly lends itself to restoration, parts fabrication and repair of parts.
Ron is a Member of American Watchmakers – Clockmaker’s Institute (AWCI) National Association of Watch and Clock Collectors, Central Watchmakers Guild of PA and Watchmaker’s Association of New Jersey. In June 2006 Ron received his certificate for Certified Watchmaker 21 by AWCI.
Cleaning and Polishing
Charlie at the Bench
Mark at the Bench
The workshop is fully equipped with older, specialized equipment for traditional repair techniques of the older watches. This includes lathes for turning, milling, boring, pivoting, a micro drill press, jeweling, finishing and polishing tools, viewing and measuring microscopes, optical comparator, jig borer and milling machine as well as quartz tester, water-resistance testing and precision timing equipment for the modern high-grade watches. There is also a spare parts inventory for both the old and new Breitling watches and we are able to fabricate damaged or missing parts, often to exact specifications.
Our service is limited to high-grade, complicated and antique watches and clocks. We are best known for our vintage chronograph work on Breitling. We see more than 400 high-grade complicated watches a year.