Last year, for Watches & wonders 2024, Grand Seiko introduced a rather meaningful new model – well, a pair of models, to be precise, with the Birch Bark SLGW003 and SLGW002. A new member in the Evolution 9 family, it was the first to be categorised as thin and elegant, but also came with something quite special on the back… Grand Seiko’s first hand-wound hi-beat movement in 50 years, the in-house and handsome Calibre 9SA4, itself based on the automatic and innovative Calibre 9SA5. This year, this appealing watch comes back in a new edition, the Moonlit Birch SLGW007, with a steel case, a navy blue dial and a more casual strap.
The Evolution 9 collection and specifically the Birch series of models has been quite a ride for Grand Seiko,gathering great success with the Hi-Beat SLGH005 and Spring Drive SLGA009,followed by variations in black or green. Last year saw the introduction of a much thinner,more compact and more elegant variation around this theme,the Birch Bark SLGW003 and its rather remarkable hand-wound movement. Now, the brand presents a new edition of this characterful dress watch, which couldn’t be more GS and Japanese, yet dressed in blue, to reflect the “quiet scenery of white birch trees in the moonlight.”
Grand Seiko Evolution 9 Moonlit Birch SLGW007: A New Standard in Hi-Beat Excellence
Table of Contents
Grand Seiko has announced the permanent addition of the Evolution 9 Moonlit Birch Hi-Beat 36000 80 Hours SLGW007 to its collection. This new timepiece builds upon the success of the SLGW003, offering a refined aesthetic and impressive technical specifications at a more accessible price point. Available starting October 2025, the SLGW007 represents a significant offering for discerning watch enthusiasts.
Design and Inspiration
The SLGW007 draws its inspiration from the serene beauty of birch forests bathed in moonlight. The dial features a textured pattern reminiscent of birch bark, achieved through a elegant pressing technique. This texture, combined with the subtle gradient of silver and gray, creates a captivating visual depth. The watch maintains the Evolution 9’s signature case design, characterized by its flowing lines and pleasant wearability.
Technical specifications & Movement
At the heart of the SLGW007 beats the Grand Seiko Hi-Beat 36000 80 Hours movement (Caliber 9S14).This automatic, hand-wound movement is renowned for its accuracy and reliability. key features include:
Hi-Beat: Operating at 36,000 vibrations per hour (5Hz), ensuring exceptional precision.
80-Hour Power Reserve: Providing extended autonomy, allowing the watch to run for over three days when fully wound.
Automatic with Manual Winding: Offering the convenience of automatic winding while also allowing for manual winding to maximize power reserve.
Case Material: Stainless Steel
Case Size: 40mm
Water Resistance: 100 meters (10 bar)
Pricing and Availability
The Grand Seiko Evolution 9 Moonlit Birch SLGW007 (SLGW007) will be available from Grand Seiko Boutiques and select retailers worldwide beginning in October 2025. It is priced at EUR 10,200, making it a more attainable option compared to the EUR 12,000 price tag of the SLGW003 titanium edition. Further details can be found on the official Grand Seiko website: https://www.grand-seiko.com/.
Key Takeaways
The Grand Seiko Evolution 9 moonlit Birch SLGW007 is a permanent addition to the Grand Seiko collection.
it features a stunning dial inspired by moonlit birch forests.
the watch is powered by the highly accurate Hi-Beat 36000 80 Hours Caliber 9S14 movement.
It is indeed priced at EUR 10,200 and will be available in October 2025.
Grand Seiko continues to push the boundaries of horological excellence with the Evolution 9 Moonlit Birch SLGW007. This new release solidifies Grand Seiko’s position as a leading manufacturer of luxury timepieces, offering a compelling blend of artistry, innovation, and precision. As Grand Seiko expands its global presence, models like the SLGW007 will undoubtedly attract a growing audience of watch collectors and enthusiasts.