Omega
The CK2915 Effect
Racing At its Core
Since its birth in 1957, the legacy and importance of this chronograph has only grown. Before it became the watch that went to the Moon – and generally speaking, the “official” watch of the great space adventure – it was already proving itself as an innovative alternative in sports chronographs. Designed by Claude Baillod, the watch was intended to become an instrument for speed on the ground, a companion for the Grand Tourers of the 1950s. The detail of its recessed secondary dials is a feature that alludes to the dashboards of Italian sports cars, such as the mid-50s Ferrari 500 and 750, to mention two examples. But this “intention” of keeping the watch “grounded” did not last.
The First Speedmaster: The CK2915
It is no surprise to anyone that all Speedmasters will always bear a very strong resemblance to each other, no matter what era they are from. And the beginning of this definition of style began in 1957 with Ref. 2915. The 2915 is the reference by which all others Speedies shall be judged; it is kind of the “Speedmaster to rule them all”.
A fundamental detail that separates the 2915 from its descendants is the bezel and its tachymeter scale. The original Speedmaster had a natural colored metal bezel, lacking the famous black insert that became so well known years later with the 2998 and later timepieces. Furthermore, the 2915’s tachymeter scale was a sort of “unique sales point” of the Speedmaster, since Omega called it a “Tacho-productometer scale”, being the first time that it was printed on the bezel and not on the periphery of the dial. This stylish solution was eventually copied by the rest of the industry – like the Rolex Cosmograph Daytona that would emerge in 1963 – making the first Speedmaster a source of watchmaking innovation that would be recognized forever.
Other features that define the Ref. 2915 are the details of its wording on the dial, with the “O” in “Omega” stretched to the sides and the tail of the “r” in “Speedmaster” more elongated and stylized. The screwed caseback is unadorned, except for a minimal ‘Speedmaster’ engraving on the bevel. The engraving of the seahorse, today so associated with the Speedmaster, would come just a few years later.
We cannot fail to mention the 2915 mechanical heart, another of the great legacies of Omega and the Speedmaster. The movement that used the first chronograph was the legendary caliber 321, an Omega execution of the legendary Lemania 2310, a manual wind column-wheel chronograph that was a genuine workhorse of watchmaking in the second half of the 20th century, as it was seen elsewhere, in different guises, such as Patek Philippe’s CH 27-70 or Vacheron Constantin’s 1141. The Lemania 2310 was forever engraved in the history of contemporary watchmaking and the Cal. 321 (18,000 bph, 44-hour power reserve) is one of its most worthy evolutions.
Ref. 2915-1 and -2 are essentially identical. Only a few tiny details in the bezel graphics separate them visually, but it is recognized that they were identical throughout. However, Ref. 2915-3 is a strange one because, being a transitional model, it had variations and aesthetic inconsistencies that make it difficult to establish a single official definition of how it “should” have been.
Additionally, these variations of course anticipated the arrival of the most excellent Ref. 2998, born in 1960 and worn by Wally Shirra in 1962 during his Mercury Sigma 7 mission, making it the first Omega worn in space and the archetype of the soon-to-be-born Speedmaster “Moonwatch”.
The “57” and “Broad Arrow” Homages
In recent years, several reinterpretations of the original Speedmaster 2915 have emerged. Interestingly, they are sometimes referred to as “Speedmaster ’57″ and sometimes as “Broad Arrow”. There is no specific rule behind the nomenclatures, other than that the inspiration is the same: the 2915 born in 1957.
Before going into further evolutions of the 2915 styling cues in newer watches, it merits mentioning that the Broad Arrow element – the big pointer triangular hour hand – has appeared here and there in a few watches, including the Speedmaster X-33 from 1998, which had a “skeletonized” Broad Arrow hour hand.
Omega Speedmaster ’57
In 2013, Omega launched the Speedmaster ’57 (basic steel-on-steel Ref. 331.10.42.51.01.001), yet another homage to the original 2915 only that, this time, it overhauled the mechanical concept of the earlier watch to bring it to the new era, by means of a self-winding Co-axial movement (the COSC-certified Cal. 9300). Its dual-register dial – running seconds at 9 and chronograph hours and minutes at 3 – also included a date window at 6, as a sign of the new times. The Speedmaster ’57 came in a very good 41.5 mm case size and included the metallic tachymeter bezel. Regular-production versions of this watch came with needle-type hands, and not the “Broad Arrow” type, although there was an exception in 2015.
Later editions of “Broad Arrows” somehow continue to pay tribute to the original Speedy 2915 and the legacy it has written over 60 years. Further examples of this are quite interesting Speedies wearing distinct clothing and innards.
Omega Speedmaster Broad Arrow
In 2002, Omega launched the “new” generation of Omega Speedmasters (base Ref. 3551.50.00), chronographs using self-winding Co-axial movements (Cal. 3303) but keeping the most important styling cues of the legend that is the CK2915.
These modern Speedmasters preserve the classic dial configuration, of recessed small registers at 3, 6 and 9 (30-minutes, 12 hours and running seconds, respectively) but add a small date window at 6 o’clock. The 42 mm case has the same diameter as the modern Speedmaster Professional Moonwatch. Notably, the metallic tachymetric bezel and the Broad Arrow hands pay the biggest tribute possible to the first Speedmaster of 1957, therefore representing, probably, the best contemporary execution of the 2915 there could be. The 18-year-old Speedmaster Broad Arrow 3551.50.00 offered by Watchfinder is a serious looker and a fitting, modern homage to the first Speedmaster.
Omega
Speedmaster Broad Arrow
42mm, in stainless steel, automatic
Omega Speedmaster Broad Arrow Rattrapante
Another nice example of a reinterpretation of the key design elements of the Speedmasters of yore is the Omega Speedmaster Broad Arrow. This watch – originally launched in 2006 – includes an interesting rattrapante (or split-seconds) chronograph, courtesy of the caliber 3612, yet another COSC-certified Co-axial automatic movement, based on the 3313, the automatic, column-wheel chronograph workhorse that drives most modern Speedmasters.
Here, the timepiece is powered by the Omega caliber 3612. The movement is based on the high-performance automatic F.Piguet 1186 caliber which features an integrated automatic split-seconds chronograph featuring double column-wheels, a vertical clutch, an isolator mechanism to eliminate rattrapante drag, and finally the famous Co-Axial escapement.
Designed by George Daniels more than 40 years ago, the Co-Axial escapement is now at the heart of the vast majority of Omega’s watches. Most of the watch industry uses the common Swiss lever escapement which has one fundamental issue; it requires oil. The Co-Axial escapement all but eliminates all sliding friction with a system of three pallets that separate the locking function from the impulse, with the pushing, of the lever escapement, resulting in greater mechanical efficiency. Eliminating frictions would also mean longer service intervals.
The addition pusher at 10 o’clock operates the dual column-wheel split-seconds feature. While the chronograph function is running, a first pressing of the 10 o’clock pusher stops the secondary seconds hand while letting the main chronograph seconds hand run free. A second pressing of the button makes the stopped hand “catch up” with the main seconds hand. The typical pushers at 2 and 4 operate the start-stop and reset functions as usual. This is further proof that mechanical chronographs are exceptional complications that should not be taken for granted just because they are all-too common. Add to that the iconic styling language of the Speedmaster Broad Arrow and you got yourself a watch that is not only a looker but also packs a punch inside it.
Omega
Speedmaster Broad Arrow Rattrapante
44mm, in stainless steel, automatic, rattrapante