This is a generic LED watch I added to an ebay order. It uses an internal module to display the time when pressed, with an extra flourish of LED activity before and after actually telling the time.
To set the time you wake the unit up with the single button, and then hold it until the display starts flashing the hours and either "A" for AM or "P" for PM. Press the button to increment through and then press and hold to step to setting the minutes, then again for the date settings.
To remove the module you have to push out two steel pins that pass right through the module holder and silicone housing. They are indented on one side, so if they don't press through easily try them from the other side. Once they are exposed you can grip them and pull them out with pliers.
The power is supplied from a lithium cell type 2016, and if you wish to change it you will need to remove and re-use the stick-on contact on the cell itself. be careful unclipping the cell as it's possible to break the plastic surround that retains it.
I wouldn't recommend removing the PCB from the module, since it has very small LED chips with exposed gold contact wires that would be easy to damage just by touching it. The controller chip is also COB mounted (chip on board) with the only soldered component being a generic 32,768Hz crystal for timing.
To set the time you wake the unit up with the single button, and then hold it until the display starts flashing the hours and either "A" for AM or "P" for PM. Press the button to increment through and then press and hold to step to setting the minutes, then again for the date settings.
To remove the module you have to push out two steel pins that pass right through the module holder and silicone housing. They are indented on one side, so if they don't press through easily try them from the other side. Once they are exposed you can grip them and pull them out with pliers.
The power is supplied from a lithium cell type 2016, and if you wish to change it you will need to remove and re-use the stick-on contact on the cell itself. be careful unclipping the cell as it's possible to break the plastic surround that retains it.
I wouldn't recommend removing the PCB from the module, since it has very small LED chips with exposed gold contact wires that would be easy to damage just by touching it. The controller chip is also COB mounted (chip on board) with the only soldered component being a generic 32,768Hz crystal for timing.