Tudor Tudor Black Bay 36 Model Number: 79500 Case Size: 36mm Old model 36mm: Blue dial. With a superior 150M water resistance compared to the current model, this is a reliable watch for everyday use as well as sports activities. I have used it with care, but I am selling it to organize my collection. I used it about 3-5 times a month. It is in relatively good condition, but please understand that there may be minor scratches from normal use. I used it with a NATO strap, so the TUDOR genuine leather strap and D-buckle are new and unused. In June 2025, I had the gaskets replaced and the crown and winding stem cleaned and maintained at a watch store. The daily rate has been adjusted to +3 to +5 seconds, so I think you can use it without stress in everyday use. The overhaul is due in September 2030. Accessories: Outer box, inner box, booklet, guarantee card Please understand that this is a used item.