Montblanc Heritage Chronometrie Quantieme Complet is a stainless steel automatic watch featuring full-calendar and moonphase complications, suited for refined everyday and formal wear. Key attributes: Silver | Gray | Stainless steel | Water resistance 3 bar | 42-hour power reserve | Sapphire crystal | Automatic movement (Cal. MB 29.16) | Full calendar: month, weekday, panoramic date | Moonphase display | Triple-folding clasp | 40 mm round case | 9.7 mm case height | Silver dial | Stainless steel bracelet | Dimensions & fit: Case diameter: 40 mm | Case height: 9.7 mm | Lug width: 20 mm | Composition & care: Stainless steel | Sapphire crystal | Wipe with a soft cloth. Avoid prolonged exposure to water beyond the 3 bar rating. Have the movement serviced by an authorised watchmaker.