Jaeger LeCoultre Memovox E875 YG 1975

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Jaeger-LeCoultre Memovox, 18K Yellow Gold, Ref. 875.21, Cal 916, Speed Beat
Serial: 1445952 / Mvt 2156673
Circa: 1975
Reference: E875 / E875.21

DIAL: Golden dial signed Jaeger LeCoultre. Golden central disc with triangle. Hours and minutes gold/black baton hands.
T SWISS MADE T indication at 6 o’clock

CASE: 37mm, 18K yellow gold with two crowns and acrylic glass

MOVEMENT: JLC Caliber 916, Automatic 'Speed Beat' with date and mechanical hand-wound alarm, 17 jewels

BRACELET: Leather strap with JL gold plated buckle

CONDITION REPORT: Dial and hands are mint (10/10) and in original condition. The case is unpolished and excellent with light signs of wear.

NOTES: This watch is accompanied by its archive extract confirming the reference E875.21 in 18K yellow gold and the 1975 production year.

The Jaeger LeCoultre MEMOVOX is known as the original automatic alarm watch. The first MEMOVOX was released in 1950 with the hand-wound mechanical caliber 489. The MEMOVOX name is composed of two Latin words ‘memo’ and ‘vox’ that respectively mean remember and voice.
In 1956, Jager LeCoultre released the Caliber 815 Memovox, which was the first automatic alarm wristwatch with its signature ‘bumper’ self-winding movement.
This was followed by the caliber 825, which had the additional date module and became the most iconic layout for the MEMOVOX automatic date alarm wristwatch.

These automatic calibers ran at a frequency of 18’000 while the later caliber 916, launched in 1969 and found the reference E875, known as the ‘speed beat’, was a more precise high-frequency movement running at a frequency 28’800. This unique high-frequency and high precision automatic alarm watch with a date is a culmination of decades of history and technological improvement from the mid-twentieth century.