JLC Memovox Worldtime
From Chronopedia
JLC Memovox Worldtime
Jaeger-LeCoultre added a date module to 815 and that new movement, the popular Caliber 825, went into the new Memovox Worldtime which was created to celebrate the brand's 125th Anniversary.
Two Worldtimes were sent to President Johnson, both cased in 14kt yellow gold with the seal of the President on the case back, in the hopes of usurping the Cricket. Johnson accepted the gift but it didn't weaken his love for the Cricket and he gave away one Worldtime as a gift and donated the other to his Presidential Library after his term ended.