Marathon 46mm Jumbo Diver Pilot's Automatic Chronograph (CSAR) Stainless Steel Watch The 46mm Jumbo Diver/Pilot's Automatic Chronograph (CSAR) is commonly known as the Chronograph Search and Rescue (CSAR) and is the most coveted of our SAR Class. It is considered the "Grail" of our watches and is the perfect choice for those who demand the best in quality and performance.  Featuring a 25-jewel automatic chronograph movement with 1/5th of a second accuracy, the stopwatch function uses 1/100 of a minute, decimal timing for use in flight record logbooks and tracking fuel consumption. The watch can track elapsed time up to 12 hours, making it the ideal choice for pilots and divers. The movement is powered by an ETA Valjoux 7750 with Incabloc™ Shock Absorber, ensuring reliable and accurate timekeeping in any situation. The watch also features a day and date calendar. For easy readability in low light conditions, the CSAR features tritium gas tubes and MaraGlo™ luminous features. The crystal material is made of sapphire, making it scratch-resistant and durable, while the screw-in crown ensures water resistance up to 30 ATM. The case and bracelet are made of 316L stainless steel and finished with a brushed texture, providing a sleek and modern look. The uni-directional bezel has a 60-minute scale and the watch has a submergibility of 30 ATM, making it perfect for diving and other water activities. The watch has a case diameter of 46mm, a case thickness of 18mm, and a lug width of 22mm. Movement:   ETA Valjoux 7750 with Incabloc™ Shock Absorber No of Jewels:   25 Scale Quantity:   2 Scale Range:   1-12 (13-24) Calendar Type:   Day & Date Luminous Features:   Tritium Gas Tubes and MaraGlo™ Crystal Material:   Sapphire Crown Type:   Screw-in Case Material:   316L Stainless Steel Case Finish:   Brushed Bezel Type:   Uni-Directional Bezel Scale:   60 Minute Submersibility:   30 ATM Case Diameter:   46mm Case Thickness:   18mm Lug Width:   22mm