The Omega Speedmaster Moonphase reference 304.63.44.52.01.001 is a 44.25mm luxury chronograph crafted from 18K Sedna gold, a proprietary rose gold alloy designed to resist fading. It features a black sun-brushed dial with diamond-polished 18K Sedna gold indexes and hands, protected by a scratch-resistant sapphire crystal with anti-reflective treatment on both sides. The watch is equipped with a black ceramic bezel ring featuring a Ceragold tachymeter scale and is presented on a black leather strap with a matching 18K Sedna gold foldover clasp. It is powered by the Omega Co-Axial Master Chronometer Calibre 9904, a self-winding movement that provides a 60-hour power reserve and is visible through a transparent sapphire case back.
The timepiece incorporates several advanced complications, most notably a high-resolution moon phase indicator at 6 o’clock that features a hand-engraved 18K Sedna gold moon disc filled with enamel. It also includes a central chronograph seconds hand, a 60-minute and 12-hour recorder at 3 o’clock, and a radial date sub-dial at 9 o’clock. As a Master Chronometer, the movement is certified by METAS to withstand magnetic fields up to 15,000 gauss and ensures water resistance to 100 meters. The moon phase complication is noted for its extreme precision, requiring adjustment only once every ten years.
General reviews of the Speedmaster Moonphase highlight its impressive technical specifications and the aesthetic appeal of the photorealistic moon disc. Enthusiasts often praise the stability and anti-magnetic properties of the Co-Axial movement, though the watch’s significant thickness of approximately 17mm is frequently cited as a factor that may affect wearability on smaller wrists. While the finishing and high-tech materials like ceramic and Sedna gold are widely lauded, some users have noted that the crown can be difficult to grip due to the design of the crown guards. Overall, it is regarded as a modern, technically superior evolution of the Speedmaster legacy that balances sporty heritage with high-end luxury.