URWERK UR-105M : TECHNICAL SPECIFICATIONS Case in: UR-105M 'Iron Knight': titanium and steel bezel UR-105M ‘Dark Knight': titanium and AITin-treated steel bezel Dimensions: 39.50mm x 53mm x 16.65mm Movement: UR 5.01 manual-winding mechanical movement, with 38 jewels. Power reserve 42 hours; Satellite hours driven by bronze beryllium Geneva crosses Orbital structure in PEEK (PolyEtherEthercetone) Carrousel and three main plates in brass Indications: Dial: Hours, minutes and 10 seconds Case band: Lateral seconds and power reserve indications Control board: ‘Oil Change’ and power reserve indications, timing adjustment screw