Dear OF members, I'm selling my 1972 Longines UltraChron in top condition, all original, untouched, and working perfectly. Case: Stainless steel (looks like the Heuer Monaco case by Piquerez). Sharp case with visible chamfers. There are small minor scuffs as in pictures but nothing severe. Sharp caseback showing the Longines Medallion. Dimension: 34mm x 38mm (excluding crown). About 12mm tall. Movement: In-house Caliber 431 hi-beat automatic with date complication Service: Unknown service history but keeping good time and date changes as it should. Dial: Blue sunburst dial with golden markers. Perfect tritium plots. Crown: Signed and original Strap: Aftermarket strap 20mm included as in picture. Buckle is not signed. Overall: All original, untouched, and rare watch in excellent condition. I do not have pictures of the movement because I do not know how to open the watch. Given the condition of the watch and how its keeping good time, I am certain that the movement is very clean with no issues. If you are very serious I can try to ask my watchmaker to open it. I am asking close to US$ 1,150 net to me via bank wire. Watch is in Chicago and I will let you decide which shipping option/declare value/insurance. I can provide references upon request. I will accept return if item is not as described. Please let me know if you have any questions. Thanks for looking and thank you OF for the space.