The Lange 1 Time Zone is perhaps the most elegant and sophisticated dual-time wristwatch that launched in 2005. Tastefully executed and highly functional, this model was the Glashütte-based manufacturer’s first attempt in crafting a timepiece that combines a dual time complication with a city ring. The watch enjoyed instant recognition among highflying collectors for its added utilitarian status , while strongly adhering to the original Lange 1 design code.

Fusing form and function, the Lange 1 Time Zone is a frequent flyer’s favourite like none other. Boasting distinct proportions of the golden ratio, the large home-time register with classical Roman numerals is contrasted with a substantially smaller local-timezone register, showcased on an independent dial with Arabic indexes at 5 o’clock. Advancing in parallel with its outer city ring, the additional time zone moves in unison with its surrounding partner as they both operate via the same pusher at 8 o’clock.

Paying tribute to the firm’s first South American retailer, Simonetta Orsini, the present model is a Buenos Aires edition in white gold, launched in 2010 as a limited edition of 100 pieces. In favour of featuring “Rio de Janerio”, as seen on most Lange 1 Time Zone timepieces, “B. Aires” is proudly displayed on the city wheel to celebrate the Argentinian retailer. Presented in excellent overall condition, the current example is numbered 39 and is offered with its full set of accessories.