Omega Speedmaster ’57 ref titanium on titanium model is a particularly collection-worthy edition of the Speedmaster. The ’57 model pays homage to the Moon Watch’s past with retro hands and a fascinating bi-compax dial. At the same time ref. is a modern Speedy equipped with an anti-reflective and scratch-resistant sapphire crystal over the dial grade 5 titanium and a Co-Axial in-house caliber 9300 self-winding mechanical movement with an impressive 60-hour power reserve. This model pairs the cool tones of the lightweight titanium finish with a classy white dial and sharp blue hands.