The Royal Observatory, Greenwich (formerly the Royal Greenwich Observatory or RGO), in London played a major role in the history of astronomy and navigation, and is best known as the location of the prime meridian. It is situated on a hill in Greenwich Park, overlooking the River Thames. The observatory was commissioned in 1675 by King Charles II, and remains at Greenwich as a testament of the pioneering work in navigation undertaken by Earnshaw and his peers in the fields of timekeeping, and cartography. COLLECTION: OBSERVATORY MODEL: ES-8030-03 MOVEMENT: Automatic 3 Hands with Double Open Heart CASE: Stainless Steel CASE DIAMETER (mm): 45 CASE THICKNESS (mm): 14 CASE SHAPE: Round CASE COLOUR: Stainless Steel DIAL COLOUR: Champagne BAND: Genuine Leather Strap BAND COLOUR: Black BUCKLE: Strap Buckle BAND WIDTH (mm): 22-20 WATER RESISTANCE: 5ATM WATCH WEIGHT (g): 100 WARRANTY: 2 Years International