The brass tube case gives the smartwatch an unusual steampunk look. However, the open case also means that the watch is not fully waterproof, although a water-repellent coating did allow it to survive a brief immersion in a glass of water during a test.
Combined with the NWatch firmware, this DIY smartwatch can connect to a smartphone via Bluetooth to synchronize the time and display incoming notifications and calls. The firmware includes several watch faces. Anyone who would like to try building a DIY smartwatch themselves can find plenty of technical information about this project on Huy Vector’s website.