Calibre L902.0 manually wound, constant- force fusee-and-chain transmission with planetary gearing, tourbillon regulator 使用在The LANGE TOURBILLON "Pour le Mérite"限量款中
Calibre L901.1 manually wound, twin mainspring barrels, power-reserve indicator, patented outsize date, lever and escape wheel made of gold, balance cock, pallet cock and escape wheel cock made of gold 使用在The LANGE 1A限量款中