Jaeger-LeCoultre refines the Polaris Date with a more wearable 40mm case, while keeping the collection’s adventurous spirit and signature blue-dial charm intact.
When Jaeger-LeCoultre revived the Polaris name back in 2018, it reimagined the modern sports watch through a brand-new collection of timepieces designed for a more dynamic lifestyle. The modern Polaris collection pays direct homage to the brand’s diving watches from the 1960s, more specifically the 1968 Memovox Polaris, while beautifully balancing practical functionality and robust capability.
While the vintage Polaris featured complications such as alarm functionality, the modern collection has evolved through several complications, even featuring highly complex functions such as a perpetual calendar. Now, for 2026, Jaeger-LeCoultre is updating the collection with a new Polaris Date that has a much more wearable design. With slimmer proportions that make it compact and versatile, Jaeger-LeCoultre has refined the Polaris into something that feels easier to wear every day.
A More Wearable Polaris With The Same Adventurous Spirit
The biggest update in this new Polaris Date is the new case size. The signature stainless steel case is now presented in a 40mm x 12.9mm size, which immediately makes it more wearable than the previous Polaris timepieces. For reference, the previous Polaris Date measured in at 42mm x 13.92mm, which means the new case size should sit more compactly on the wrist. This is important, as the Polaris Date is meant to be a daily sports watch, not just a weekend adventure piece like some of the other models in the Polaris collection.
While the case size has slimmed down, Jaeger-LeCoultre has done well to keep the dial size relatively similar to the 42mm model. To do this, the Maison has reduced the size of the bezel, giving more room to the dial. The signature double crown is also retained, a necessary feature as one crown controls the time and date, while the second crown adjusts the internal rotating bezel.
The dial on the Polaris is one of the strongest design elements, as the gradient colours combined with the texture make it stand out very nicely on the wrist. For this 40mm variant, Jaeger-LeCoultre has opted to keep the dark blue gradient lacquer dial that is present on the previous Polaris Date models, which is justified, as the blue ties it nicely to the model’s diving heritage while giving the dial a stronger sense of character. The centre of the dial features a sunburst effect, while outside of the minute track, the dial features a grained texture.
The bold Arabic numerals, elongated trapezoid indexes and skeletonised hands are all defining characteristics of the Polaris collection. These elements give the dial excellent readability, and with a generous amount of Super-LumiNova used for the indices and hands, it is designed to provide crisp low-light visibility, especially if you are planning on testing the 200m water-depth rating of the timepiece!
While most details remain the same between the previous 42mm and this new 40mm edition, there are two subtle changes that Jaeger-LeCoultre has made to the dial. The first is that the Maison has moved its logo from underneath the 12 o’clock marker to now sit firmly within the centre sunburst dial. This allows the logo to stand out much more and, honestly, gives the dial a more balanced design. The second detail is that the word “Automatique” has been removed from above the 6 o’clock marker.
In-House Precision With Everyday Practicality
Even though the case size has been reduced, the movement remains the same. Sitting inside this new Polaris Date is Jaeger-LeCoultre’s Calibre 899, a movement that is designed, produced and assembled entirely in-house at the Manufacture.
Operating at 4Hz, or 28,800 VpH, it offers a stable, modern beat rate suited to daily wear. Previous versions of the Calibre 899 came with a power reserve of 43 hours; however, this has now been improved to a much more welcome 70 hours of autonomy. The sapphire caseback reveals the beautiful finishing, complementing the pragmatic character of the Polaris collection.
Initial Thoughts
The new Jaeger-LeCoultre Polaris Date is a welcome addition to the collection. One detail of the Polaris collection that seemed to bug me was the lack of different case sizes, especially in the smaller range. For my 16cm wrist, a 42mm case size is borderline, so this new 40mm size feels like a much-needed step in the right direction. It makes the Polaris Date, arguably their most versatile model in the collection, much more approachable and, in my opinion, far better suited to daily wear.
And what I like even more is that it keeps the Polaris Date personality intact. The dual-crown layout, internal rotating bezel, gradient blue lacquer multi-finished dial and 200m of water resistance all remain, the difference being that the watch now feels like it has broader everyday appeal. For me, this is where the Polaris Date makes the most sense: not as an extreme dive watch, but as a refined, capable sports watch that carries Jaeger-LeCoultre’s elegance while still having enough adventure in its DNA.
References & Specifications
| Feature | Specification |
|---|---|
| Reference | Q9128981 |
| Dimensions | 40 mm case diameter x 12.9mm thickness |
| Case | Stainless steel with brushed and polished surfaces |
| Dial | Luminescent numerals and hour-markers, Blue, Sunburst, grained and opaline |
| Crystal | Sapphire with anti-reflective coating on both sides |
| Caseback | Open, sapphire |
| Movement | Automatic Manufacture Calibre 899 |
| Power Reserve | 70h |
| Beat Rate | 4Hz / 28,800VpH |
| Water Resistance | 200m / 20bar |
| Strap/Bracelet | Interchangeable blue canvas with quick-release technology. Double folding stainless steel buckle. |