The Rolex 1601 is a classic timepiece from Rolex's Datejust collection, first introduced in 1958 and produced until the early 1970s. This model is renowned for its elegant design and timeless appeal. 

The 1601 features a 36mm stainless steel case, a size that has become iconic in the world of watches. It has a smooth  fluted bezel, which adds a touch of sophistication and sparkle. The watch's dial is adorned with door stop markers at 6 and 9 and simple stick markers at 3 and 12. It has a date window at 3 o'clock, magnified by the signature Cyclops lens on the crystal.

The movement inside the Rolex 1601 is the automatic Caliber 1570, known for its robustness and precision. This model has a vintage charm due to its early use of automatic technology, making it a beloved choice among collectors and enthusiasts. 

Overall, the Rolex 1601 embodies the essence of Rolex's dedication to quality and timeless design, making it a sought-after piece for those who appreciate classic watchmaking.