Jaeger LeCoultre® calibre # 812 mainspring with brake spring Fits calibers: 812, 813, K812, K813, P812, P813 Elgin 849 O-ring case back gasket to

O-ring case back gasket to fit Omega® case numbers: 3960996

Calendar window is at the 4 o'clock position

Wheel diameter is 100 mm

glass blowing

Also available in 4" x 6" (61-173) and 5" x 7" (61-177)

Jaeger LeCoultre® calibre # 812 mainspring with brake spring Fits calibers: 812, 813, K812, K813, P812, P813 Elgin 849 O-ring case back gasket toJaeger LeCoultre mainspring with brake spring, part # 771, calibre # 812 mainspring with brake spring to fit Jaeger LeCoultre calibres: 812, K812, P812, 813, K813, P813 *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.