The Franck Muller Cintree Curves Master Imperial collection is recognized for its elegant design, curved case, and often intricate complications. A 42mm case size suggests a moderately sized watch suitable for those seeking a balanced presence on the wrist.
The "pre-owned" designation indicates that the watch has been previously owned or used and is available in the secondary market. However, for accurate and detailed information about a specific Franck Muller Cintree Curves Master Imperial 42mm watch from 2021, including its model variant, condition, and availability, I recommend contacting reputable dealers or specialized watch sellers who deal with pre-owned Franck Muller timepieces.
Authorized dealers, established luxury watch marketplaces, or reputable watch experts can assist in locating this specific model, provide insights into its condition, authenticity, service history, and discuss pricing based on market demand and the watch's overall state.