Stunning and very rare Poljot OFFICIAL MILITARY Sturmanskie very rare calibre 31659, definitely not to be confused with the very common 3133, this movement has pause feature for synchronisation and other details and is 'truly' the one and only legendary model used by the Russian air force since the 1970s in its hand-wound chronograph version. Specifically, this particular specimen being offered features the rare characteristic of a MARVELLOUSLY PRESERVED dial with a splendid patina developed over time which confirms the watch's originality... highly sought after, perfect in every detail, but requires servicing because it loses a few minutes per day and stops; I don't believe it's ever been serviced, and the chronograph resetting needs calibrating, which would logically be done at the same time it's serviced, the Reault inner bezel works perfectly, turns perfectly, and the push-buttons always work perfectly. Case diameter: 39 mm Stunning Plexiglas crystal in excellent condition for its age, and the few scratches present lend it that touch of originality that makes it stand out on any occasion. Please note: the calibre 31659 is very rare and hard to find, making this a fine opportunity to bring one home! Item will be custom packaged with extreme care, as well as shipped via express UPS or TNT courier with insurance and tracking for the parcel; average delivery is in 24-48 hours throughout Europe with this service.