Grand Seiko Sport Spring Drive GMT SBGE277 30m-less Tested in real ocean conditions

Tested in real ocean conditions during its development

this landmark timepiece propelled Seiko into the forefront of dive watch design

The watch is water resistant to 600 metres / 2000 feet / 60 bar and has a helium-escape valve

This creates a watermark that corresponds to a gauge clearly indicated in yellow on the dial

the BR 05 is now equipped with a chronograph movement – a mechanical complication perfectly adapted to the pace of urban life

Grand Seiko Sport Spring Drive GMT SBGE277 30m-less Tested in real ocean conditionsA Spring Drive GMT with a new rock pattern dial All Grand Seiko Spring Drive timepieces are designed, made, assembled and adjusted by the skilled craftsmen and women of the Shinshu Watch Studio, which is located in central Japan and surrounded by the Hotaka mountain range whose tallest summit is 3,190 metres high. As the Hotaka mountain range was created by volcanic activity, its peaks and slopes have sharp ridges and sheer cliffs which, even when