Marathon 46mm Jumbo Day Date Automatic (JDD) Watch The Jumbo Day/Date Automatic (JDD), commonly known as the Jumbo Day/Date, is a reliable and accurate military watch that is designed for durability and functionality in a variety of conditions. Featuring a 46mm case made of brushed 316L stainless steel, this watch is built to withstand the rigours of military operations. The JDD is powered by a Swiss-made ETA 2836 automatic movement with Incabloc™ shock absorber and features 25 jewels. It also boasts a bilingual day/date window that displays in both English and French, making it ideal for use in multinational military operations. This military watch features Tritium gas tubes and MaraGlo luminous technology for low-light visibility, ensuring that it can be easily read in any situation. The sapphire crystal is scratch-resistant and protects the watch face from damage. With a lug width of 22mm and a case thickness of 18mm, the JDD is a substantial and robust watch that is sure to withstand the demands of military use. Overall, the Jumbo Day/Date Automatic is a reliable and functional military watch that is designed to meet the needs of military personnel in the field. Movement:   ETA 2836 with Incabloc™ Shock Absorber No of Jewels:   25 Scale Quantity:   2 Scale Range:   1-12 (13-24) Calendar Type:   Bilingual 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