2024 New Products: 42mm Half-Interval, the most challenging blue balloon color ever created. A brand new four-piece set with a separated bezel and new details, outshining ordinary electroplated half-interval blue balloons on the market. The new structure features a separated bezel, a bottom cover with a new AU logo, sapphire crystal with heat-treated blue hands, and original blue spinel made from the same material. Every component is interchangeable with genuine parts. Original folding clasp and imported fully automatic mechanical movement.