Jaeger-LeCoultre Duometre: New Iteration Release

Key Points from the Discussion

• The new Duomètre Chronograph Moon, featuring Calibre 391 with twin barrels and two gear trains, combines a chronograph, moon phase, hour-minute, day/night indicator, central seconds, and seconde foudroyante in a platinum case with a copper-coloured opaline dial.
• The new Duomètre model, which combines chronograph and moon phase with a day/night indicator, is a completely new reference, raising questions about the power distribution between its twin barrels and the chronometric accuracy compared to previous iterations.
• The new Duomètre's rounded case presents a 'softer' aesthetic, with the dial appearing to curve into the bezel, and will be available in platinum and rose gold, neither as limited editions.
• The original author expresses concern that the new dials might make precise moon phase setting more difficult compared to previous Duomètre models, which featured a 'Precision' indication on the dial.
• Setting the moon phase on the new model, while lacking the 'Precision' scale, is still achievable using a moon phase calendar or app, similar to other moon phase watches, by counting pusher activations from a full or new moon.
• Alfihar notes several design and technical curiosities, including a crown that appears mismatched with the modern case, less detailed moon phase on the blue dial, and an unusual hand color for the chronograph sub-dial on the salmon dial.