Jaeger-lecoultre, Flip Series, rare Edition, Model: Q273212A, 18K rose gold material, 42x26mm in diameter, manual mechanical movement, red triangular arrow hand indicating date function, red day window at 11 o 'clock in the upper left corner, the entire watch weighs approximately 140 grams. Reverso with a full gold chain strap is extremely rare and worth collecting. Single form with appraisal certificate