Poljot Buran Chronograph Moonphase🌙 Calibre 31679 movement based on the Valjoux 7734. Manual wind, 25 jewel, cam-actuated chronograph movement with moonphase and date complication. No stop seconds or quickset date feature. 30 meters water resistant. High polished case measures 40 x 13 mm. Sapphire crystal. Genuine leather strap fixed with screwbars. Display back. Watch is in mint condition. Keeping time but power reserve is about 12 hours. Could use a service. Includes original box & hang tag.