Excellent service by CW and DHL. The watch is a very nice, robust, reliable, accurate, functional timepiece just like Ratio Watches claims. The strap is of excellent quality. The crown winds very smoothly, the change of date at 00:02 and of day at 03:02, exactly as prescribed by the NH 35A engine. The bezel is ss and extremely accurate, no back play. The time accuracy is -25 sec / 8 days. Excellent for a mechanical watch. Overall, a very beautiful and functional watch. Maybe Ratio would consider a laser engraving of a "Π" on the front of the crown. Similarly for the He valve. Congratulations for the creation of a beautiful watch at an excellent price.