IWC. A Limited Edition 18K rose gold manual wind calendar wristwatch Portugieser Hand-Wound Eight Days Edition '150 Years', Ref 510211, No.088/250, Purchased 15th September 2018IWC. A Limited Edition 18K rose gold manual wind calendar wristwatchModel: Portugieser Hand-Wound Eight Days Edition '150 Years'Reference: 510211, No.088/250Date: Purchased 15th September 2018Movement: 30-jewel Cal.59215 manual wind, No.4401785Dial: White, black Arabic numeral hour markers, black outer minute track with 5 minute markers, subsidiary seconds at 6, date aperture at 3, blued steel leaf handsCase: Brushed and polished round, exhibition back secured by 6 screws, No.6150830Strap/Bracelet: Brown IWC alligator leatherBuckle/Clasp: Signed 18K rose gold buckleSigned: Case, dial & movementSize: 43mm Accompaniments: IWC box, outer card (AF), International Limited Warranty card, polishing cloth, original purchase receipt, two spare IWC straps (no buckles), operating instructionsIWC was founded in 1868 and celebrated their 150th anniversary in 2018. In order to mark the event, the brand released the "150 years collection". Whilst other models from the collection highlighted IWC's technical capability, the current lot focusses on attractive minimalist design.