A-11 1940s WWII Pattern Automatic Military Watch With Shatter and Scratch Resistant Box Sapphire Crystal on Matching Retro "Bonklip" Pattern Bracelet with an Additional Canvas Strap

Benefits of Sapphire Crystal Synthetic sapphire is the best material for watch crystals due to its strength and resistance to shattering and scratching. These characteristics make it highly appealing to military and security personnel, police officers, and those with active outdoor lifestyles—groups that account for over 70% of our customers. When accidents occur, over 90% of cracked crystals are mineral glass, even when hardened. Sapphire crystal, however, is heat-treated to remove internal stresses, enhancing durability, and is coated with two layers of anti-reflective material. Notably, sapphire crystal is also used in the latest iPhone models. Although it comes at a higher price, sapphire crystal is typically found only on higher-end watches due to its superior durability. Summary The A-11 model honors the original WWII design while incorporating modern features that enhance its functionality and durability, making it a perfect blend of vintage charm and contemporary technology. Bo