SHOP › SOLD. 1950's 18k Solid Gold Jaeger LeCoultre Memovox Wrist Alarm Image 1 of 1 SOLD. 1950's 18k Solid Gold Jaeger LeCoultre Memovox Wrist Alarm $2,750.00 An all original 18k solid yellow gold JLC Memovox Wrist Alarm. Fully serviced ready to wear. Add To Cart Added! An all original 18k solid yellow gold JLC Memovox Wrist Alarm. Fully serviced ready to wear.