YANTAR 

For terms of usages TPD database click here
Description Caliber Turns Direct Turns Per Day
Air Nautic GMT II Calibre Y-1-24-GMT Both 650
Air Nautic 24 I, Air Nautic 24 II Pilot Calibre Y-2-24-GMT Both 650
Chronograph I Rattrapante Chronometer C.O.S.C. Calibre Y-3-77 CW 800
Chronograph II Moonphase / Day & Night Chronometer C.O.S.C. Calibre Y-4-77 CW 800
Chronograph III Tricompax Calibre Y-5-77 CW 800
Marine 24 GMT Chronometer C.O.S.C. Calibre Y-1-24-GMT Both 650
Submarine 24 II Calibre Y-2-24-GMT Both 650