3991.50.41Ref

First introduced in 1998 as a modern-day Moonwatch, now the 'Mars Watch', the Omega Speedmaster X-33 has a high-tech titanium case and an analog/digital movement with a particular set of functions. The second generation came in 2001 with minor updates. Reference 3991.50.41 is part of that second generation, distinguished by its matte bezel insert and distinct crown.