Please note that to use this, your bootloader MUST be unlocked.
You can download the modified recovery image from here.
To flash this recovery, make sure that your watch is plugged into your PC, in fastboot mode, with all of the proper drivers installed (if applicable), then run the following command.
fastboot flash recovery twrp-f2fs-3.0.2-sturgeon.img
Kernel source: https://github.com/r3pwn/android_kernel_huawei_sturgeon
Device tree source: https://github.com/r3pwn/android_device_huawei_sturgeon
Devs, please note that the device tree is designed to be built in a CM tree, not an Omni tree. If you are having some trouble getting TWRP into your CM tree, PM me and I'll help you out.