At the heart of Baltic’s MR collection lies the CAL500a micro-rotor movement, an automatic calibre crafted by Hangzhou and offering a 42-hour power reserve. Flip the watch over, and through the exhibition caseback, you’ll discover a mesmerising display-the off-centre golden rotor, complemented by vivid blue screws, rich red rubies, and golden gears – which all contrast elegantly against the silver base.