using a 371 battery with hand dimensions 160/120/70/20 (24 hour (GMT) hour/minute/sweep second)
Jaeger LeCoultre® alarm crown wheel screw - see Lec 910 part # 5420
Jaeger LeCoultre® large driving wheel and pinion with spindle
The minute hand measures 45 mm in length
Kasper 1200
Jaeger LeCoultre® calibre # 10ROL escape wheel and pinion, pivoted, for lower end-piece Fits calibers: 10ROL, 480, 800, 810, K830, K831 Longines® dustproof crowns using a 371 battery withJaeger LeCoultre escape wheel and pinion, pivoted, for lower end piece, part # 703, calibre # 10ROL escape wheel and pinion, pivoted, for lower end piece to fit Jaeger LeCoultre calibres: 10ROL, 480, 800, 810, K830, K831 *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.