When the first Rolex Datejust was introduced in 1945 – the year of the brand's 40th anniversary, it made history as the first automatic, water-resistant, certified chronometer with a date on the dial. The "Cyclops" lens was added in 1955 to magnify the date display by two and a half times, thus making the indication more legible and clear. This feature became one of the most recognizable Rolex hallmarks of all time.

In 2009, Rolex introduced the Rolex Datejust II. This line of timepieces offers the characteristics of the original and emblematic Rolex Datejust in a more streamlined and modern design and includes new innovations. One of the most significant differences between the Rolex Datejust and the Rolex Datejust II is, of course, the size – the new model is 41 mm, considerably larger and following the trend towards larger cases. The other essential difference is the movement – the Datejust II has the honor of carrying the caliber 3136, created by the brand specifically for this model – an in-house movement with Paraflex shock protection, a Parachrom hairspring, a COSC certified chronometer with a 48-hour power reserve and a frequency of 28,800 vibrations per hour.

In 2017, the brand also introduced the newest version of the model under reference number 126300. One of the biggest changes is the movement – the new caliber 3235, which offers an increased power reserve of 70 hours, a significantly improved automatic winding system (with a rotor on a ball bearing), and an increased efficiency of about 15%. The reversing wheels – one of the critical areas in terms of friction – are Teflon-coated. The new 3235 holds 14 patents and over 90% new components, and is also twice as precise as the requirements for an official COSC chronometer.

It is no coincidence that the Datejust is the brand's most popular and recognizable model after the iconic Submariner – and the Datejust 41 allows this popularity to be presented in a contemporary interpretation, especially since this particular watch features a Jubilee bracelet – something that was not possible with the previous version of the model.

The detail of this timepiece is truly impressive – as, indeed, with all modern Rolex watches we have had the opportunity to handle. Starting with the incredible dial (in this case, a deep blue color used by Rolex in relatively few models), which seems to disappear at certain angles, creating the feeling that the hands and markers are 'floating' in the air in a kind of weightlessness. The luminescent material is the brand's characteristic Chromalight – available only on the versions with markers (not with Arabic or Roman numerals), which makes this combination even more attractive.

Moving on to the sapphire crystal with the "Cyclops" lens – the highest grade of sapphire is used here, which allows the overall height of the watch to be reduced compared to its predecessors. Of course, the case and bezel deserve special attention – an impressive combination of brushed 904L steel with faceted, polished edges and details. As is well known, Rolex pays special attention to materials and has its own foundries for the production of its alloys.

The bezel is the so-called "smooth" type, which lends an exceptionally elegant look and a strong presence on the wrist. The combination of this dial and the Jubilee bracelet makes the timepiece truly impressive and distinctive.