The Classima collection is made up of steel, 18K red gold, or a combination of both in the two-tone models, and comes with a choice of alligator straps or steel or two-tone bracelets. These watches are powered by self-winding mechanical movements, some of which can be seen through the sapphire crystal case back, or Swiss-made quartz movements. Available in 39 and 42 mm sizes, the collection was revamped in 2015 with a new 40 mm size for men who appreciate a sleek and subtle watch. The dials come in a variety of styles, including the iconic line guilloche design, striking a balance between masculine simplicity and technical sophistication. Classima also offers models for women, known for their