The Speedmaster is a line of wristwatches produced by the Swiss luxury watchmaker Omega. Known for its precision and durability, the Speedmaster was originally designed for motorsport and has become famous for its association with space exploration. It was the first watch worn on the moon during the Apollo 11 mission in 1969. The Speedmaster features a chronograph function, allowing users to measure elapsed time accurately. Its iconic design includes a tachymetric scale on the bezel, which is useful for calculating speed. The watch is highly regarded by collectors and enthusiasts, making it a significant piece in the world of horology.