Frederique Constant Classic Moonphase Date pairs a refined 40 mm steel case with a moonphase-and-date complication powered by an in-house automatic movement with a 72-hour power reserve. Designed as an elegant everyday dress watch, it features a silver sunburst dial and a blue leather strap. Key attributes: Gray | Silver | Blue | Stainless steel | Water resistant to 5 Bar (50 m) | 72-hour power reserve | Moonphase and date display | Automatic winding (in-house movement) | Folding buckle with push buttons | See-through caseback | Round 40 mm case | Silver sunburst dial with railtrack minute circle | Sapphire crystal | Blue leather strap | Dimensions & fit: Case diameter: 40 mm | Case thickness: 11.78 mm | Lug width: 20 mm | Composition & care: Stainless steel case | Sapphire crystal | Leather strap | Silver clasp | Wipe case and crystal with a soft cloth. Keep leather strap dry and avoid prolonged exposure to moisture. Have the movement serviced by an authorised service centre.