Omega Speedmaster Co-Axial Chronograph Watch .Model: 311.30.44.51.01.002 .TVS independently developed Caliber 9900, a master chronometer with dual t.mes
chanism. The sub-dial at 3 o'clock serves as a 12-hour and 60-minute chronograph counter. All functionalities and aesthetics are consistent with the original, showcasing the craftsmanship of TVS.Vibration frequency: 28,800 beats per hour .Power reserve: 60 hours .Stainless steel case and bracelet, with a curved double-sided anti-reflective scratch-resistant glass.