The 60th anniversary of Grand Seiko has proven to be a time of real inspiration for the brand, releasing a series of celebratory models that amount to real horological advances, dutiful nods to the past, and a taste at what the future might hold in terms of the brand?s overall design aesthetic. We previously covered new releases that highlighted Grand Seiko?s excellent quartz calibers, and just showed you a breathtaking advancement in the realm of their high frequency movements, involving the invention of an entirely new escapement. Now, we turn our attention to Spring Drive, perhaps the movement technology most closely associated with the brand. To debut their new 9RA5 caliber, representing the next generation of Spring Drive tech, Grand Seiko has introduced a professional diver that takes full advantage of the caliber?s accuracy, reliability, and extended power reserve.
Grand Seiko SLGA001

Case Material: Titanium
Dial: “Grand Seiko Blue”
Dimensions: 46.9 x 16mm
Crystal: Sapphire     
Water Resistance: 600 meters
Crown: Screw down               
Movement: 9RA5
Strap/bracelet: Titanium bracelet
Price: $11,100 
Reference Number: SLGA001
Expected Release: August 

Spring Drive, as most longtime readers of this site will be aware, is a technology that combines the accuracy of quartz timekeeping with a traditional mechanical gear train. Spring Drive watches are powered by a mainspring, never require a battery, and are capable of a...