Vintage Jaeger-LeCoultre Ellipse, Black dial, Ref. 5002.42, Ultra-Thin, Automatic Cal. 900 from 1970sThe Jaeger LeCoultre Ellipse is one of those watches that needs very little explaining. Produced in the 1970s, it represents a particular moment in Swiss watchmaking when the best houses were pushing design as hard as they were pushing mechanics. Jaeger LeCoultre long regarded as the watchmaker's watchmaker, the manufacture that supplied movements to Patek Philippe, Audemars Piguet and Vacheron Constantin turned that same precision inward and produced