TUDOR BLACK BAY CERAMIC 41 Reference: 79210CNU. Serial number: 19394H4. Black ceramic case. Rotating bezel with graduated ceramic insert. Black dial with ringed hour markers. Mechanical self-winding movement (calibre MT5602-1U). NATO strap with signed pin buckle. Sapphire crystal. Circa 2022. Diameter: 41 mm. Supplied with its case, outer box and papers. A ceramic wristwatch with an automatic movement, by Tudor. Circa 2022. RC: Sold as is, with signs of wear and use. Movement was functioning at the time of writing this description; a routine service is recommended; no warranty provided.