Arguably A. Lange & Söhne‘s most recognisable timepiece, the Lange 1 is the face of the brand. For the 20th anniversary of the model, Lange has created five different sets of the Lange 1, comprising matching his-and-hers Lange 1s with guilloche dials in colours used on earlier Lange 1 models but not seen since, like a black dial with a rose gold case.

Each set is made up of the classic 38.5 mm Lange 1 and the Little Lange 1 which has a 36.1 mm case and a diamond-set bezel. Unlike the conventional Lange 1 which has a smooth, satin finish dial, the anniversary editions have guilloche dials, bringing to mind uncommon, earlier Lange 1 limited editions like the Lange 1A.

While this use the standard Lange 1 movement, a small detail sets them apart – the balance cock has an engraved “20” in a nod to the anniversary.

These will be available in platinum with a silver or black dial, or white gold with a blue dial, or pink gold with a black or silver dial. Only 20 sets of each metal will be made.

The prices are as follows: US$98,100 for the pink gold, while white gold is US$100,500, and platinum will cost US$122,900.