Omega Introduces the Constellation Co‑Axial Master Chronometer 39 mm

A revamped gent's classic.

After having modernised the Constellation for ladies two years ago, Omega has just done the same for the men’s model, revamping the watch inside and out. Now the full range of Omega’s bestselling model line – the Constellation is likely the most popular watch model in China – has been facelifted.

The new gents’ Constellation CoAxial Master Chronometer line-up is 26 models strong, all of which share the same basic specs.

While the signature Constellation design has been retained, the case and bracelet has been sharpened with subtle improvements that given it a substantially different look. And the case is also larger, at 39 mm instead of the 38 mm of the earlier generation. But most importantly, the new model is equipped with a Master Chronometer movement containing all of Omega’s latest tech.

Nip and tuck

Available in steel, yellow gold, Sedna gold as well as two-tone combinations, the new Constellation retains the classic barrel shape with concave facets at the top and bottom lugs, as well as the four bezel “claws” at three and nine o’clock. The overall design is, in short, fundamentally the same, but it has been improved in finishing and style, inside and out.

The lines and surfaces of the case and bracelet are now cleaner and more pronounced, at the same time accentuated with improved finishing.

While the bezel claws keep their traditional polished finish, most of the other surfaces are now brushed, with the case and bracelet featuring polished bevels along their length, creating a more pronounced outline and sleeker silhouette. The upgraded finishing is also found on the claws, which sport subtly bevelled edges.

At the same time, Omega has reduced the prominence of the claws, which are the defining element of the design, while being polarising.

The claws were starting to look dated, but Omega has extended their longevity by reducing their prominence. They are now thinner and almost flush with the bezel, whereas in the recent past they were slightly bulbous; in the first generation Constellation they were more like raised lips.

Though this is relatively discreet adjustment, the better integration of the claws into the bezel freshens up the design of the watch.

Other reshaped elements on the case include the bezel, which is now thinner and engraved with upright Roman numerals, instead of the radially-aligned numerals of past versions. And the crown taller and gently conical, instead of flat.

Like the case, the dial has been reimagined to give it a more purposeful look, with “alpha” hands and elongated, facetted hour markers. Various dial finishes are available, including a textured, crosshatch finish, as well as the option of diamond hour markers.

The subtle-but-significant facelift continues on the bracelet, with each bracelet link having polished bevels and mid-bar links, improving its look and feel.

And a mechanical upgrade

Lastly, the movement inside is the METAS-certified Master Chronometer cal. 8800 or 8801, a latest generation Omega movement boasting all of the technical innovations developed in recent years. They include a free-sprung balance wheel, silicon hairspring, and Co-Axial escapement parts made from proprietary alloys that boost its magnetism resistance to over 15,000 Gauss.

The cal. 8800 (left) and cal. 8801

The steel and two-tone metals are equipped with the automatic cal. 8800 with a rhodium plated rotor, while the all-gold versions are powered by the cal. 8801, which is the same calibre dressed up with rotor and balance bridge in 18k Sedna gold.

Key facts and price

Omega Constellation Co‑Axial Master Chronometer 39 mm
Ref. (Steel with a black dial)
Ref. (Sedna gold and steel, with a silver dial)
Ref. (Sedna gold with a silver dial)
Ref. (Yellow gold and steel with a silver dial)
Ref. (Yellow gold with a silver dial)
Another 21 more references available

Diameter: 39 mm
Height: Not available
Material: Steel; Sedna gold; yellow gold; steel and yellow gold; steel and Sedna gold
Water resistance: 50 m

Movement: Cal. 8800 (Steel and two-tone models); Cal. 8801 (gold models)
Functions: Hours, minutes, seconds, and date
Winding: Automatic
Power reserve: 55 hours

Strap: Bracelet or leather

Limited edition: No
 At Omega boutiques and retailers
Price: Starting at US$6,050, or 8,400 Singapore dollars for the steel base model; to US$31,700, or 43,950 Singapore dollars for the all-gold, top-of-the-line watch

For more information, visit


Back to top.

You may also enjoy these.

Hands-On: Zenith Defy 21 Land Rover Edition

Pared back and functional.

The Zenith Defy 21 is unquestionably strong value for money – a 1/100th of a second chronograph starting at just over US$10,000 for the base model in titanium. But most of the iterations of the Defy 21 so far have a highly technical look, combining a skeletonised dial with a large, angular case.

Now the Defy 21 design has taken a sharp turn in another another direction: with the help of Land Rover, Zenith has given it a makeover, creating the minimalist and functional Defy 21 Land Rover Edition.

While automotive-inspired watches are often over designed, the Defy 21 Land Rover Edition has been redesigned in a simple and effective manner; the watch has been streamlined and pared back, giving it a slightly military look that works. The styling is a nod to the 2020 Land Rover Defender, the most no-nonsense of the British carmaker’s offerings that was launched in late 2019.

Clean lines and surfaces

To start with the case is micro-blasted titanium – finished with a finer-than-usual frosting that is faintly granular, in contrast to the coarser frosting that is more commonly applied to titanium. The surface is smooth enough that is resembles a coating, but it is natural titanium.

The simplicity of the case finish is appealing, because it suits the chunky, angular form of the case. But it is also practical, because it reduces the perceived size of the case, which is large at 44 mm by 14.4 mm. But being titanium, the case is fairly lightweight and wears comfortably, though the strap and folding clasp take a bit of adjusting to get just right.

One bit of the case that is unnecessary is the orange washer around the crown, an accent intended to match the orange on the dial. It makes the crown more visually prominent than it should be.

Similarly, the dial has been smartly simplified. While the original Defy 21 emphasised the construction of the movement – particularly with the open-worked dial revealing the twin balance wheels and a large power reserve display – the Land Rover Edition instead emphasise the legibility.

The attention to detail in the redesign is significant; even the hands and power reserve display have been revamped, with the only bits carried over from the standard model being the chronograph hands. While the hour and minute hands on the standard model are wide and angular, the hands here are rounded and no nonsense.

The hour marker are small and printed on the dial, as are the markings on the chronograph registers. Notably, the registers are recessed on two levels, giving the dial a bit of depth, and preventing it looking too wide and flat.

And the dial has the seconds track and chronograph hands in orange, giving it enough colour to be interesting, without distracting from the simplified design.

The watch pictured is a prototype, which is why some of the printing on the dial is slightly fuzzy

But the most reduced element of the dial is the power reserve, which has been minimised a narrow, horizontal window. The linear power reserve display is not a new idea, Panerai has made it something of a signature, but it is useful without getting in the way of the design.

Auto inspired

While the new Defy 21 avoids most of the usual frills found on automotive inspired watches – no hands shaped like brake callipers for instance – it does concede one detail. The rotor is shaped like the wheel rim of the Land Rover Defender, but it’s visible only from the back, making it discreet enough to be acceptable. And the rotor actually works well with the overall styling of the watch.

The only downside of the rotor is that the spokes obscure the movement, leaving little of it visible. But while the movement is technically interesting, it is not particularly compelling visually in its non-skeletonised form, so not being able to see it isn’t too much of a loss.

The El Primero 9004 inside is identical to that in the standard Defy 21. It relies on twin balance wheels and gear trains, one for the time and the other for the chronograph.

The balance wheel for the chronograph runs at 360,000 beats per hour, 10 times the frequency of the timekeeping balance wheel. As a result the chronograph is a true 1/100th of a second stopwatch, with the central seconds hand making one revolution around the dial every second. Although several years have passed since the introduction of the Defy 21, it remains the most affordable 1/100th of a second chronograph on the market.

Concluding thoughts

The look and feel of the Defy 21 Land Rover works; it’s probably the best-looking iteration of the model to date.

And it is good value, though not quite as much of a bargain as the standard model. The Land Rover Edition is about 25% more expensive than the base model Defy 21, which is acceptable given the relatively small run of 250 pieces and styling.

Key facts and price

Zenith Defy 21 Land Rover Edition
Ref. 97.9000.9004/01.R787

Diameter: 44 mm
Height: 14.4 mm
Material: Titanium
Water resistance: 100 m

Movement: El Primero 9004
Functions: Hours and minutes; 1/100th of a second chronograph and chronograph power reserve indicator
Frequency: 36,00 beats per hour (5 Hz)
Winding: Automatic
Power reserve: 50 hours

Strap: Grey rubber, and additional fabric-covered rubber strap

Limited edition: 250 pieces
 From April 2020 at both retailers and boutiques
Price: US$13,400

For more, visit

Correction January 17, 2019: The new Defy 21 is inspired by the Land Rover Defender, and not the Discovery as stated in an earlier version of the article.

Back to top.

You may also enjoy these.

Welcome to the new Watches By SJX.

Subscribe to get the latest articles and reviews delivered to your inbox.