Original box and papers contribute real value in the secondary market. The guarantee card documents when and where it was sold and helps establish the chain of ownership. An unpapered example does not indicate automatically suspect, although it commands reduced value.

Second hand Luxury Chrono Pieces watches presents an opportunity to pieces which remain impossible to buy new. Authentication remains the critical step. Case and movement numbers must correspond to the documentation. Service history influences what the watch is worth.

Automatic and manual watches call for periodic servicing to keep running accurately. Recommended periods range between brands, generally around every five to seven years. Complete servicing includes disassembly, cleaning and lubrication. Postponing maintenance can cause accelerated wear.

Secondary market value ranges widely between brands and references. Steel professional models by the strongest brands frequently trade above retail, though precious metal dress watches commonly lose value. Box, papers and condition drive the spread within a reference.