Taped Steel Band Omega 3861 Moon Watch Rose Gold Model. 20.42.50.99.001 The 42mm case diameter is matched with a stepped dial with a solar ray polished effect. It is equipped with blackened small dials and hour markers, presenting a unique Visual impact, the black ceramic bezel is decorated with a tachymeter scale made of OMEGA Ceragold technology, and has the iconic "Dot over 90" mark of early Speedmaster models. The 3861 Master Chronometer movement equipped inside is highly precise. It has high strength and anti-magnetic capabilities, and it also has amazing movement polishing technology. Its unique design and excellent performance combine luxury and precision, making it a dream timepiece for watch collectors and space fans.