"Grand Seiko's proprietary Spring Drive movement combines the traditional mainspring with an electronic circuit and quartz oscillator, achieving impressive accuracy without a battery. The standard movement gains or loses approximately 15 seconds a month, while the new Caliber 9RB2 offers ultra-fine accuracy of plus or minus 20 seconds per year."
"The Ushio 300 is part of the Evolution 9 series and is the most accurate dive watch in the Grand Seiko lineup. Made from high-intensity titanium, it is 30 percent stronger than steel and water-resistant to 300 meters, featuring an 18mm extender for wetsuits and a 6mm micro-adjuster."
"The dial of the Ushio 300 is inspired by nature, with undulating shapes and gradient colors that reflect the sea. Available in blue or green, the green variant is noted for its uniqueness, enhancing the watch's overall aesthetic appeal."
The Grand Seiko Ushio 300 is a dive watch that features a nature-inspired dial design, reflecting the sea's undulating shapes and gradient colors. It is powered by the Spring Drive Caliber 9RB1 movement, offering ultra-fine accuracy of plus or minus 20 seconds per year. Constructed from high-intensity titanium, the watch is water-resistant to 300 meters and includes features like an 18mm extender for wetsuits. The Ushio 300 is the smallest dive watch in the Grand Seiko lineup at 40.8mm, showcasing both functionality and aesthetic appeal.
Read at Esquire
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