Omega Speedmaster (Pre-owned - Good) — USD 2,131 on eBay

The Omega Speedmaster 125, introduced in 1973 to commemorate Omega's 125th anniversary, was the world's first chronometer-certified automatic chronograph. This substantial timepiece was produced in a limited series of 2000 pieces, making it a notable, albeit less common, variant within the Speedmaster family. Its distinctive tonneau-shaped case and integrated bracelet set it apart from the more traditional Professional models, reflecting the design trends of the era. Powering the Speedmaster 125 is the Omega Caliber 1041, an automatic chronograph movement based on the Lemania 1340, further enhanced with chronometer certification. This movement features a central minute and second chronograph hand, a 24-hour indicator, and a date display. The robust stainless steel case typically measures around 42mm in width, with an integrated bracelet designed for a seamless fit. The dial usually features a black finish with contrasting sub-dials and luminous markers. For collectors, the Speedmaster 125 is significant for its technical innovation as the first chronometer-certified automatic chronograph and its unique aesthetic. Its limited production run contributes to its collectibility, particularly for examples in original, well-preserved condition. The Caliber 1041 is also highly regarded for its robust construction and functionality, representing a key development in Omega's chronograph history.