My Mud Master's Second Hand was dead. The Second Hand sometimes stuck at around 5 or 10 minute mark.
Yesterday (23 Sep 2017), I opened, then closed the case back and manually received the time correction signal. The problem of Stuck Second Hand is solved. I am not sure the solution is the open and close the case back or manually receiving the time signal (Automatic Time Correction failed for nearly 5 month. I do not put the watch near the window at night, the watch cannot receive the signal easily.) or Both.
However, if your Mud Master has the Stuck Second Hand problem, you may check the Last RC Date first and Manually Receive the Time Signal. If the problem is still exist, you may try open the case back in order to reset the watch.
Now, my Mud Master is Reborn ... ... it runs normally till now ... ...