But, if you are Grand Seiko and your aim is to make the ideal watch in terms of precision, durability and ease of use, the challenge is irresistible. One of the most serious hurdles is the faster wear and tear of parts, particularly of the escapement. When the hairspring wears, the swing of the balance wheel diminishes and deteriorates the original accuracy.
In order to overcome this hurdle, we have developed two key technologies.
First is Spron 610. This new alloy for the hairspring boasts of longer durability, elasticity and anti-magnetic characteristic.