For Patek Philippe evaluation we utilize a three-tiered pricing system.
Each successive tier provides more detailed information.  

€ 50 CHF 59 $ 62

Whether your watch is a known or an unknown entity in the marketplace
_________________

Whether it is worthwhile for your watch to be further analyzed

I make my request

€ 250 CHF 297 $ 308

Whether your watch is a known or an unknown entity in the marketplace
_________________

The production period
_________________

The quantity that was produced of your particular watch model
_________________

The quantity of the model known to the market
_________________

Whether your watch has undergone modifications

I make my request

€ 500 CHF 594 $ 617

Whether your watch is a known or an unknown entity in the marketplace
_________________

The production period
_________________

The quantity that was produced of your particular watch model
_________________

The quantity of the model known to the market
_________________

The quantity of model produced in different metals
_________________

Whether your watch has undergone modifications
_________________

Reference/Caliber details
_________________

Case maker
_________________

Dial variations
_________________

Previous sale prices realized will be indicated

I make my request