Designed with a stainless steel case and bracelet and black dial, this 40.2mm Grand Seiko Caliber 9S85 offers high precision and reliability that endures. Grand Seiko Hi-Beat watches incorporate a new Spron alloy, delivering a longer power reserve and superior durability. The new mainspring produces 50% more torque, meeting the requirements for 36,000 vibrations and providing a 55-hour power reserve. The accuracy of a mechanical watch depends greatly on the precision of its hundreds of individual parts. This is why all the components of each Grand Seiko watch are made by Seiko in-house and to the same high standards. Featuring a see-through caseback, automatic movement allows for self and automatic winding capabilities and features 37 jewels, with accuracy -3 to +5 seconds per day under static conditions. 100M Water Resistant. Men’s Grand Seiko Mechanical Hi-Beat 36000 40.2mm stainless steel case and bracelet with black dial.
Watches
Stainless Steel
40mm, See Description
Black
Date, Power Reserve
Automatic, See Description
Stainless Steel
What is the “Grand Seiko Standard?”
The Grand Seiko Standard is a Seiko-exclusive accuracy standard for mechanical watches which has been established to ensure superior performance of Grand Seiko mechanical watches irrespective of the differences in environmental conditions in which a watch is used. The Grand Seiko Standard differs from the other recognised chronometer standards in two important respects. While most accuracy standard testing is done for five positions at two temperatures, the Grand Seiko Standard tests six positions at three temperatures. This is because the Grand Seiko Standard seeks to replicate real world conditions.
How accurate is Grand Seiko?
The accuracy of Grand Seiko differs according to the mechanism and caliber of your watch.
QUARTZ : The annual accuracy is ±10 seconds when worn on the wrist within a normal temperature range (between 5 ºC and 35 ºC) for approximately 8 hours per day.
SPRING DRIVE : Average monthly loss / gain is ±15 seconds when worn on the wrist within a normal temperature range (between 5 ºC and 35 ºC）.
MECHANICAL : Accuracy of Grand Seiko mechanical watches when worn is specified within the target range of -1 to +10 seconds per day. To properly judge the accuracy under normal use conditions, check the mean value of gain / loss over a period of seven to ten days.
Where does Grand Seiko manufacture their watches?
As one of the very few fully integrated watch manufactures in the world, Grand Seiko possesses a mastery over the full breadth of the watchmaking process from the research and development of component materials to manufacture, assembly, adjustment, inspection and shipment.
— The Shizuku-Ishi Watch Studio produces world-class mechanical watches with highly accurate movements and exquisite exterior design
— The Shinshu Watch Studio drives innovative ideas and novel technologies behind the ultimate quartz watches and Seiko’s exclusive Spring Drive watches
Each of these pre-eminent watch studios plays a pivotal role in combining the cutting-edge technology and masterful craftsmanship necessary to reach the pinnacle of quality represented by Grand Seiko.
Click the button below to read more about Grand Seiko’s Shizuki-Ishi and Shinshu Watch Studios.
The brand celebrates the Japanese spirituality of time that is deeply inspired by nature and her seasons and brought to life by Takumi, the dedicated seekers of mastery.
It was the determination to excel that brought about the birth of Grand Seiko in 1960. During its development and ever since, the idea that drove the designers and engineers was that Grand Seiko should be the ‘ideal’ watch with standards of precision, durability and beauty that would lead the world.
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