Grand Seiko’s Evolution 9 collection has been killing it recently, and quietly. In 2024, we greeted the arrival of the SLGW003 with praise. It’s bright titanium case, silvery birch bark-inspired dial, and the Evolution 9 design language (which plays hard with the concept of light and shadow) was a winning combination that left a lasting impression. Coupled with elegant proportions and a monumental movement that is the Calibre 9SA4, and you get a new fan-favourite.
Grand Seiko SLGW007 “Moonlit Birch”
From the radiance of the SLGW003 comes its foil, the new “Moonlit Birch”, introduced two months ago. If the SLGW003 represented the white birch trees around Shizukuishi in daytime, then the “Moonlit Birch”, as its name would suggest, represents the same symbolic trees illuminated by the moon at night. In casual enthusiast speak, this would be the ‘Darth’ edition of the SLGW003, essentially the same watch, but with a darker, brooding aesthetic. Here, we bring you the details and our honest thoughts on Grand Seiko’s latest addition to the Evolution 9 stable, the SLGW007.
The Case, Dial, and Hands
The case of the new SLGW007 is crafted in stainless steel, giving it an almost identical look and feel to its predecessor, the SLGW003. Other aspects of the case, in terms of structure, finissage and size, remain unchanged. This is still the same elegant 38.6mm x 9.95mm, multi-faceted, brushed and polished case we all love.
Where it gets more interesting is at the dial. As alluded to, the color of the dial is navy, with a slight hint of fading, evoking the bark of a white birch bathed in moonlight. Instead of black print that was used in the SLGW003, the SLGW007 uses white for contrast. And instead of a blued seconds hand that was used in the former, the SLGW007 leaves its seconds hand unblued, again for legibility reasons. Everything else on the dial appears unaltered, from the wide hour hand to the diamond-cut indices.
The Movement
Driving the SLGW007 is the 47-jewel Calibre 9SA4, the same movement used in the other variants of the birch series. The Calibre 9SA4 was released to much fanfare as it was then the brand’s first hand-wound, high-beat movement in over 50 years. While it is based on the Calibre 9SA5 that came before it, a significant portion of the base movement was redesigned. The highlight of the movement is its higher operating frequency of 5 Hz, made possible by Grand Seiko’s Dual Impulse Escapement. Twin mainspring barrels ensure that the watch has ample power reserve (80 hours) and a power reserve indicator visible through the sapphire crystal case back gives the wearer a heads up on whether the movement needs more juice.
A big part about the Calibre 9SA4 is how it was designed to be the model hand-wound movement; in other words, it’s designed for optimal winding experience. According to Grand Seiko, the movement’s click and click spring have been tailored to perfect their feel and sound when winding. And – while a bit of a stretch – the click is supposedly and deliberately designed in the shape of a wagtail, a bird recognised as special to Morioka, a city close to the studio. During the winding process, it does look as if the wagtail is pecking the wheel.
The Calibre 9SA4 is, overall, attractively finished. From the striping that goes across bridges, to the polished bevels and screw heads that highlight said bridges, the decorations on the Calibre 9SA4 are flawlessly executed albeit mostly machine-guided.
The Competitive Landscape
They’re a dime a dozen, so time-only watches have to be done absolutely right to stand a chance out in the open seas of the market. They may look simple but it is deceptively difficult to craft the perfect uncomplicated watch, just because there is nowhere to hide bad design. Full credit goes to Grand Seiko for being exceptionally adept in the making of time-only timepieces, be they spring drive or full mechanical. The brand’s latest endeavor, the SLGW007 sees the trend continue as it is as charming as a watch can get at its price point. And that price? Competitive, at USD10,000. It bears mentioning that the titanium SLGW003 sits at a slightly higher price, which makes sense given its more exotic material.
Around the ten grand mark, one has to consider the Jaeger-LeCoultre Master Control in stainless steel. It has a date function, a winding rotor and it isn’t high-beat, but it is otherwise close in size, made of steel, shows time centrally in hours, minutes and seconds, and is an all-round solid timepiece, movement and design-wise. You can’t go wrong with the Swiss or Japanese here – both the Master Control and the SLGW007 are respectable options.
If you can stretch the budget, another watch that is similar to the SLGW007 in spirit is the Chopard Alpine Eagle Cadence 8HF. As its name implies, the Cadence 8HF beats at 8 Hz, which is a fair margin faster than the Grand Seiko in question. It too displays time centrally but also includes the date. While not exactly the same, the Alpine Eagle also features a highly textured dial inspired by nature (the eagle iris in the case of the Chopard). The Alpine Eagle Cadence 8HF is priced at USD25,300, which is understandable given its full titanium build and more sophisticated mechanics.
Final Thoughts
Its release may have been low-key but the SGLW007 is anything but. From the strap to the dial, and from its nuanced design to the superlative movement, it is hard to resist the charm of Grand Seiko’s latest Hi-Beat watch. I personally like the SGLW007 but like the SGLW003 more. I just feel that the latter stands out more with its white dial (the textures are also more visible) matched with the brilliant titanium case. The preference is marginal, though. As far as variants go, Grand Seiko have done an excellent job with the SGLW007.
