Five stages of composite assembly · from the affectionate Bullion Strip marriage of the 1920s to the outright criminal theft of vintage box-and-papers identity · a forensic taxonomy of when "real" stops being real.
The pragmatic adaptation of major components from different watches to preserve functionality. Famously utilized during the Great Bullion Strip, when high-grade pocket watch calibers were salvaged from melted-down gold cases and married into steel wrist cases.
Affectionate preservation · historically accepted as a legitimate continuation of horological life.
A fully genuine watch whose original, degraded organic dial · flaking radium or oxidising lacquer · was replaced with a brand-new factory part during routine Authorized Service for waterproofing and safety.
Institutional sanitization. Authentic, but heavily penalized by purists with a 30% to 60% valuation discount for destroying period-correct DNA.
Component cannibalization. The historical dealer practice of swapping parts between two authentic watches of the same model to create one "perfect" premium example · a pristine dial transferred into an unpolished case.
All parts are genuine OEM, but the watch carries the invisible scar of secondary assembly.
A watch assembled from 100% genuine parts that do not chronologically align. A 1965 dial paired with a 1968 case. Exposes typographical variations and mismatched manufacturer hallmarks invisible to the naked eye.
The modern minefield. Technically real components · forensically fraudulent as a complete historical asset.
The physical alteration of a genuine watch's serial number · often utilizing laser-welding and re-engraving · specifically to match a loose set of highly valuable vintage Box and Papers.
Outright criminal fraud. Crosses from component modification into the intentional theft of a separate asset's identity to capture the Paper Premium.
The taxonomy reads as a continuum. The leftmost cases reflect pragmatic and institutional modifications long absorbed into the historical record. Moving right, each successive category introduces a deeper asymmetry between physical authenticity and forensic legitimacy · culminating in the deliberate identity-theft of vintage paperwork. The investor's first task is to locate the candidate timepiece on this spectrum before transacting.