Please read the profile and description first, thank you m(__)m For sale is a Swiss-made Ritma mechanical ring watch! This is a rare and unusual antique hand-wound watch. Fully original... As this is an antique hand-wound watch from a long time ago, I cannot guarantee future operation, but it is currently running without major errors. Also, it doesn't stop immediately. In my subjective opinion... There are minor scratches and clear scratches due to aging, including the crystal, but I think it's in a reasonably clean condition for an antique watch (^.^) Please enlarge the images and take a good look... This is a super rare Ritma hand-wound ring watch! Please consider it! We are looking forward to your purchase if you understand that this is a used item. Please refrain from purchasing if you are not familiar with used items, are overly sensitive, or do not understand the above explanation or have any concerns m(__)m The size in the image is about size 8, but it is a free-size ring that can be adjusted. *Please do not expand it excessively. Do not force it...σ(^_^;) Spring-driven ring watches are delicate timepieces. Overwinding is not good... Please wind it gently and softly... No accessories included... #SeikoRingWatch #SEIKORINGWATCH #SeikoRing #AntiqueWatch #RingWatch #RingClock #FingerWatch #Citizen #CITIZEN #CitizenRingWatch #CitizenRing #OrientRingWatch #OrientRing #Catorex #CATOREX #SORNA #Solna #RavisaRingWatch #RAVISA #Ravisa #FavreLeuba #FAVRELEUBA #Ritma #RITMA Movement: Hand-wound