I would negotiate down the private party one and strongly consider sending it to ALS for a service and refinishing. Lange refinishes cases with laser welding; they fill in the scratches instead of polishing down the surrounding gold.
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Lange Lange 1 ref. 191.021 | Audemars Piguet Royal Oak ref. 15500 | Breguet Classique ref. 5177BB | Glashütte Original Panoreserve | Breitling Navitimer 01 Limited Edition
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