Omega Speedmaster Racing Co-Axial Chronograph 40 mmvsTudor Grantour Chrono Fly-Back

Owners widely consider the 40mm case size of the Omega Speedmaster Racing Co-Axial Chronograph 40 mm ideal, distinguishing it from larger Speedmaster models. The Omega 3330 movement is seen as solid and serviceable due to its ETA origins, offering excellent value. However, some owners find the watch thicker than comparable automatic watches, with one noting a stiff second stopwatch button. Disagreements exist regarding its value, with one owner calling it Omega's greatest value while another found its thickness combined with the 40mm diameter a reason to move on. One owner reported misalignment at several hour markers and the '5' on the dial being too close to a subdial, while another noted subdials overlapping indices and touching the chapter ring. On balance, owners rate the Omega Speedmaster Racing Co-Axial Chronograph 40 mm highly for its 40mm case size and the value offered by the 3330 movement.

One owner finds the Tudor Grantour Chrono Fly-Back an amazing watch on the wrist, praising the fly-back function as a compelling choice. However, another owner notes the snowflake hand obstructs the 45-minute register between 2 and 4 o'clock, deeming it a design flaw. Overall, owners find the Tudor Grantour Chrono Fly-Back compelling due to its fly-back function, though some criticize the hand design.