The ROXER Natator 125 is essentially the best of the high pressure professional testers on the market. 
This or one like it is required to gain full OMEGA or ROLEX certification. It is able to test watch cases to 125bar of pressure. 
 
Now surplus to requirments. Operates perfectly, no issues. New price landed in AU with all taxes paid is close to $15k
 
Price;
$7700 AUD INC SALES TAX AND DELIVERY
$7500 AUD EXPORT PRICE INCL DELIVERY - (This is very heavy - price includes freight costs) If located outside of Australia, please contact me directly at 
sales@lewiswatchco.com to purchase this watch so it can be invoiced correctly tax free.