Omega - Speedmaster – Chocolate – 311.30.42.30.13.001 – 2010

The Omega Speedmaster Professional Moonwatch reference 311.30.42.30.13.001, commonly nicknamed the “Chocolate,” features a rich brown dial that can appear nearly black under subdued lighting. Its warm dial, matching brown subdials and black aluminum tachymeter bezel create a subtle variation of the classic Moonwatch design. Produced from approximately 2007 to 2013, this uncommon configuration features sapphire crystals on both the front and caseback. The exhibition back reveals the manually wound Omega calibre 1863, a decorated version of the movement used in the traditional Speedmaster Professional. Specifications Brand: Omega Collection: Speedmaster Professional Moonwatch Nickname: Chocolate Reference: 311.30.42.30.13.001 Year: 2010 Production Period: Approximately 2007 to 2013 Case: Stainless steel Case Diameter: 42mm Bezel: Fixed stainless steel with black aluminum tachymeter insert Dial: Chocolate brown Movement: Omega calibre 1863, mechanical and manually wound Power Reserve: Approximately 48 hours Frequency: 21,600 vibrations per hour Jewels: 18 Crystal: Scratch-resistant sapphire with anti-reflective treatment Caseback: Sapphire exhibition caseback Water Resistance: 50 metres Bracelet: Leather Clasp: Folding clasp Functions: Hours, minutes, small seconds and chronograph Special Features: Sapphire-sandwich construction, decorated calibre 1863 and uncommon chocolate-brown dial