This is a WITTNAUER triple calendar manual winding wristwatch. The bezel is 10k gold filled. WITTNAUER was the official US importer for Longines, so this is likely a Swiss-made watch for the American market. The dial also has fine engraving, suggesting it was a high-end item at the time. - Brand: WITTNAUER (likely Longines movement) - Color: Gold, bezel is 10k gold filled. - Movement: Manual winding - Estimated age: 1950s-60s - Case size: Case diameter 33.5mm (excluding crown). Please allow for some error. Please refer to the photos with the measuring tape for the size. - Daily rate: Within 1 minute when wound and placed on a desk. Also confirmed to run for over 24 hours. - Remarks: Overhauled in August 2023. You can use it as is for a while. There are no noticeable scratches or stains, but there are many minor scratches due to use. Please consider this item, keeping in mind that it is at least 60 years old. Thank you for viewing. Please feel free to ask any questions. Thank you. Operation: Good Scratches/Cracks: None #wristwatch #manualwindingwristwatch #mechanicalwristwatch #Longines #Wittnauer #gold #vintagewatch #antiquewatch