The Rolex Air-King honors the trailblazers of aviation and commemorates the pivotal role of the Oyster in the grand narrative of flight. The model you're considering is produced by the esteemed Clean Factory, renowned for crafting the most flawless Rolex timepieces. Glass: Scratch resistant sapphire : Factory made: Clean Factory Case Material: 904L steel Water resistant: 10atm 100m Case size:40mm Slides & Sandals Movement: 3230 Rolex Clone Automatic Glass: Scratch resistant sapphire Movement Note: Functions as original.