GRAND SEIKO Kodo Constant Force Tourbillon – SLGT003 (2022)
- The world’s first combination of a tourbillon and constant-force mechanism on a single axis.
- The case is made up of two different materials, first is 950PT platinum, and the second is Seiko’s Brilliant Hard Titanium
- The movement is a manual winding 9ST1
- The movement is rated -3/+5 seconds per day (much higher than the COSC requirement).
- Power reserve is 72hrs
- Limited to 20pc