10 mm x 22
part number 14027
RL5021D Swiss RL 5021D Swiss Ronda Startech Quartz Movement is a 3 hand (hour/minute/sweep seconds) Swiss assembled with 1 Chronograph indicator (small second) at the 3 o'clock position and an additional indicator (30 minute register) at the 9 o'clock position
Swiss assembled with date at the 4 o'clock position
This strand is 0
Jaeger LeCoultre® calibre # 880 mainspring with brake bridle Fits calibers: 880, 880G, 880S, 881, 881G, 881S, 882, 882S, 883, 883S LeCoultre® 814 10 mm x 22Jaeger LeCoultre mainspring with brake bridle, part # 771, calibre # 880 mainspring with brake bridle to fit Jaeger LeCoultre calibres: 880, 880G, 880S, 881, 881G, 881S, 882, 882S, 883, 883S *Perrin Supply Ltd is independent of and not affiliated with or sponsored by Jaeger LeCoultre. Jaeger LeCoultre warranty does not apply to parts supplied byPerrin Supply Ltd. Using generic parts may devalue your watch.