Rolex Datejust, the complete buying guide to the iconic classic

Choosing a first luxury watch can often feel like a puzzle. Too many models, too many references, too many conflicting opinions on the forums. Yet one name has come up in almost every conversation among watch enthusiasts for nearly 80 years: the Rolex Datejust.

Understated, versatile and recognizable at a glance, it looks just as good with a suit as with jeans. The real challenge is navigating its sizes, alloys, dials, and generations of movements.

This buying guide covers the model's history, sizes from 26 to 41 mm, two-tone versions, the most sought-after configurations, and the checks to carry out before buying, whether new or pre-owned.

Where the Rolex Datejust comes from and why it remains a benchmark

Rolex introduced the Datejust in 1945 to celebrate the company's 40th anniversary. According to the official Datejust timeline published by Rolex, it was a self-winding chronometer wristwatch with a date window at 3 o'clock, originally made only in gold.

At the time, combining a waterproof Oyster case, Perpetual self-winding, chronometer certification and a date window in a single watch was a first. This combination, more than style, explains its longevity.

The date window and the Cyclops lens

The Cyclops lens, patented in the early 1950s, first appeared on a Datejust in 1953. It magnifies the date about 2.5 times for easier reading. Initially made of plexiglass, it has been cut from sapphire since the 1970s, like the watch crystal.

The fluted bezel and the Jubilee bracelet

The five-piece link Jubilee bracelet was designed specifically for the launch of the Datejust. More supple and dressier than the three-piece link Oyster bracelet, it remains the option most closely associated with the model.

The fluted bezel, originally a functional element linked to screwing the bezel in place, has become an aesthetic signature. On steel versions, it is made of 18 ct white gold, which gives it a distinctive shine.

Datejust sizes, from 26 to 41 mm

Size is the first decision to make, as it completely changes how the watch looks on the wrist. Here are the main sizes and their characteristics.

26 mm	Vintage models known as Lady-Datejust	Earlier-generation calibres (e.g. 2135, 2235)	Pre-owned market only
31 mm	Slim wrists, jewellery style	Calibre 2236	Many gem-set and mother-of-pearl versions
36 mm	Historic size, unisex	Calibre 3235	The most versatile choice
41 mm	Contemporary presence	Calibre 3235	Ideal for larger wrists

The 26 mm Datejust, a sought-after vintage size

The 26 mm size corresponds to older Lady-Datejust models, such as references 69173, 79173 or 179173 in yellow Rolesor. Rolex no longer produces it, as the current collection has moved toward larger diameters.

These models appeal to buyers looking for a discreet watch, almost a piece of jewellery. They are often among the more affordable ways to enter the world of Rolex, as explained in this guide to luxury watches for women.

The Datejust 36, the historic size

The Datejust 36 keeps the original 1945 diameter. Current references, such as the 126200 with a smooth bezel, the 126234 with a white gold fluted bezel or the 126233 in yellow Rolesor, are powered by calibre 3235 and offer about 70 hours of power reserve.

It is the most unisex size in the range. It suits most wrists and stays comfortable under a shirt cuff.

The Datejust 41, the contemporary version

The Datejust 41 meets the demand for larger cases. References 126300, 126334 and 126333 carry the model's codes in a size that better suits larger wrists. The bigger dial also enhances the effect of coloured dials.

Choosing between steel, Rolesor and gold for a two-tone Datejust

Beyond size, the alloy defines the watch's character. Rolex uses Oystersteel, 18 ct gold and an in-house combination of the two.

According to Rolex's page on its materials, Rolesor has combined steel and gold since the 1930s. The name was registered in 1933. On a two-tone Datejust in yellow or Everose Rolesor, the bezel, crown and centre bracelet links are gold, while the case and outer links are steel.

White Rolesor is more discreet: only the bezel is white gold. For a bolder look, some Datejust models are made entirely of gold, sometimes on a President bracelet, usually reserved for precious metal models.

The most sought-after Datejust dials and configurations

The Datejust catalogue includes hundreds of combinations. Some are particularly popular on the Montreal market:

• The Wimbledon dial: slate background with green Roman numerals, mostly associated with two-tone versions.
• The mint dial: a pale green introduced in 2021, in high demand on the Datejust 36.
• The olive dial: a deeper green, offered in several sizes.
• Mother-of-pearl dials: white or black, often chosen in 26 and 31 mm.
• Classic dials: black, blue or silver, easy to wear and easier to resell.

The bracelet also makes a difference. The Jubilee emphasizes the dressy side, while the Oyster gives the same watch a sportier look.

To learn how to access these configurations without a waiting list, this guide explains how to buy a Rolex without a waiting list in Montreal.

Buying a new or pre-owned Rolex Datejust in Canada

Buyers in Quebec have two main options.

Authorized retailers offer new watches at list price, plus GST and QST. The most in-demand models, such as some Datejust 36 references with coloured dials, may, however, involve a wait that is hard to predict.

The pre-owned market provides access to discontinued references, including the 26 mm sizes, as well as immediate availability. Prices vary depending on condition, the presence of the box and papers, and the configuration's rarity. This guide to pre-owned Rolex watches in Canada outlines the reliable channels.

Authentication points to check before buying

The Datejust is one of the most counterfeited Rolex watches, precisely because of its popularity. Before closing a deal, pay close attention to several details.

The serial number and reference must match the documents. The Cyclops lens should magnify the date sharply and keep it centred. Having a watchmaker open the caseback confirms that the calibre matches the reference and that no parts have been replaced.

A professional inspection remains the best protection. The process is explained in detail in this guide to getting a Rolex authenticated in Montreal.

Rolex Datejust, a classic that never goes out of style

The Datejust has spanned decades because it strikes a rare balance: proven technology, a recognizable design, and real freedom of customization. The right choice depends mainly on three criteria: a size suited to the wrist, and an alloy and dial that match your lifestyle.

New or pre-owned, a well-chosen and properly authenticated Datejust can be worn for decades. To compare the options available on the Quebec pre-owned market, see this guide to buying a Rolex in Montreal and book an appointment with a specialist.

Frequently asked questions about the Rolex Datejust

What size Rolex Datejust should you choose for your wrist?

For a Rolex Datejust, the 36 mm size suits most wrists and remains the most versatile. The 41 mm size suits larger wrists or those who prefer a watch with more presence. The 26 and 31 mm sizes suit slim wrists. Ideally, try several sizes, because the lug shape strongly influences how the watch sits on the wrist.

Does a two-tone Datejust hold its value?

A two-tone Datejust generally holds its value well on the pre-owned market, especially when it comes with its box, papers and a service history. Sought-after configurations, such as the Wimbledon dial, resell more easily. Value still depends on condition, reference and demand at the time of sale. No watch guarantees a return, so it is best bought to be worn.

What is the difference between the Datejust and the Oyster Perpetual?

The main difference is the date. The Datejust displays the date in a window at 3 o'clock under a Cyclops lens, while the Oyster Perpetual shows only the time. The Datejust also offers a wider choice of bezels, bracelets and alloys, including Rolesor. The Oyster Perpetual favours a cleaner aesthetic, with a smooth bezel and an Oyster bracelet as standard.