ORIENT RK-BT0002L Mechanical Moon Phase Automatic Watch - Elegant Design - Stainless Steel Case - Water Resistant -Product Highlights p> The "Mechanical Moon Phase" combines three features: a power reserve display, a moon phase and pointer type date calendar display, and a semi skeleton that shows part of the mechanical movement, which is an icon of Orient Star. A dial with Roman indexes and a traditional brand logo embossed pattern. High precision with a daily deviation of +15 seconds to 5 seconds, and a driving time of over 50 hours with an in house movement.