Family: 1xx19 jewels33h power reserve21,600 vph (3 Hz)
World's smallest mechanical movement (14×4.8×3.4mm). Still produced for special editions. Historic icon.
Last updated 29 Apr 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Jewel Count
19 jewels
Power Reserve
33h
Frequency
21,600 vph (3 Hz)
Diameter
14mm
Height
3.4mm
Display Type
Analog
QUICK FACTS
BRAND
TYPE
Manual WindingSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
1929CALIBER FAMILY
1xxCOUNTRY
SwitzerlandALSO KNOWN AS
cal. 101jlc 101
FOR WATCH DEALERS
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Watches with this movement
Jaeger-LeCoultre
Calibre 101 Secrets
Q2872201
Manual WindingRose Gold
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Calibre 101 Secrets
Q2872310
Manual WindingRose Gold
Jaeger-LeCoultre
Calibre 101 Secrets
Q2873220
Manual WindingPlatinum
Jaeger-LeCoultre
101 Lady's Watch
QVE64000
Manual WindingYellow Gold
Jaeger-LeCoultre
Calibre 101 'Riviere'
QVE64001
Manual WindingWhite Gold