CVSTOS Challenge-R 50 chrono steel Carbon
Limited edition Xx on 50 pieces made!
New / old stock
Never worn piece out of big private collection. The watch is fully reviewed revised by Cvstos
Diameter 50mm steel case with Carbon inlays
Modified Valjoux 7750 movement with power reserve of 2 days
Delivered with Rubber strap and double folding clasp.
Box and papers and 2 year warranty
Optional: Alligator strap possible

Or let me know what you search!
I am always available on WhatsApp