Home / Horology, Watchmaking, Complication, Gear train Horology, Watchmaking, Complication, Gear train Richard Watkins ★ 5.0 (1 ratings) · 125 reads Sign in to save this On advanced watchmaking calculations Request CodeZLIBIO2191028 Published2018 PublisherRichard Watkins Pages20 LanguageEnglish FormatPDF