A. Lange & Sohne Lange 1 Silver 38.50mm

What you’re looking at is an example of the most important wristwatches of the last 30 years.
The Lange 1 is without question the manufacturer’s flagship model, and the big date function is its hallmark. Though found in watches like the Zeitwerk or the Langematik Sax-O-Mat, it’s in the Lange 1 that it’s shown to the greatest effect. Alongside other details such as asymmetrical sub-dials depicting the hours and sub-seconds, and the A. Lange & Söhne signature with its famous ampersand, it shows a clarity of vision that is wholly Lange. And while the Lange 1 has seen many versions, from a tourbillon to the Timezone, it’s the original that has become the symbol of the maison — and perhaps even the symbol of modern watchmaking itself. 
This particular example from circa the early 2000s, features a 38.5mm 18K yellow gold case with a sapphire crystal, a matching 18K polished bezel, a satin silver dial with subsidiary hours and minutes at 9:00; a seconds register at 4:00; a power reserve indicator at 3:00; a yellow gold framed date window at 2:00; applied yellow gold indices with and a matching handset, and one of our Analog:Shift Vesper green alligator-pattern leather strap with a matching yellow gold ‘Lange’ signed pin buckle.
Powering this masterpiece is the Lange & Söhne Caliber L901.0, a manual-winding movement that’s stunning to behold — and which can thankfully easily be viewed via the exhibition case back. 
There are complicated watches, and then there are works of art.
This is the latter.