Double barrel power concepts generally power the gear train serially or in parallel, but the Jaeger-LeCoultre Duomètre functions somewhat differently. Rather than combining the power of two mainsprings, a Duomètre movement uses each mainspring to power a different part of the movement. For example, the JLC 380 movement in the Jaeger-LeCoultre Duomètre à Chronographe uses one barrel to power the timekeeping functions and another to operate the chronograph portion.

Although the Duomètre product line is related in concept, not all Duomètre movements share much technology

• Calibre 380 (2007 Jaeger-LeCoultre Duomètre à Chronographe) - One powers timekeeping; the other powers the chronograph
• Calibre 182 (2009 Jaeger-LeCoultre Duomètre à Grande Sonnerie) - One powers timekeeping and complications; the other powers the chime
• Calibre 381 (2010 Jaeger-LeCoultre Duomètre à Quantième Lunaire) - One powers timekeeping and calendar; the other powers the escapement
• Calibre 382 (2012 Jaeger-LeCoultre Duomètre à Sphérotourbillon) - One powers timekeeping and calendar; the other powers the escapement
• Calibre 383 (2013 Jaeger-LeCoultre Duomètre Unique Travel Time) - One barrel powers each timezone
• Calibre 389 (2015 Jaeger-LeCoultre Duomètre Sphérotourbillon Moon) - One powers timekeeping, calendar, and moon phase indicator; the other powers the escapement