Apple Inc. this week said it will release the Apple Watch Hermès Series 4 Sept. 21.

The Apple Watch Hermès Series 4 will be sold in 40mm and 44mm case sizes. New Single Tour and Double Tour bands are blocked in four color combinations.

A new color block watch face will match the watch band and change according to time.

The Apple Watch Series 4 includes a larger display, new S4 CPU, new electrical heart sensor, Digital Crown with haptic feedback, and 50 percent louder speaker.

The Apple Watch Hermès Series 4 will start at $1249.