My Coifman sc0170 has stopped working , I've only worn it 6 or 7 times i bought it in March 2016 , after wearing the watch I always put it back in its box any I dears plz

Put it in a bright place and see if it charges.
My does the same thing if I don't wear it very often but always comes back to life if I put it in bright light.

Do you see a itibiti tiny solar panel in the face of the watch? If not like all watches it uses a tiny button battery

You have to wind the watch manually after you buy it. there should be a little knob at about 3 o'clock. Turn it clockwise about 40 times. Make sure you wear it enough (8 hours a day) or else you have to wind it every day like this

It probably needs a good cleaning and lubrication. This can be done at any watch repair shop, even the ones they have in Sears department stores, if you have no specialty shops in your are.

On average, I've found that analog wristwatches that use a silver oxide (or alkaline) battery last about a year after a fresh battery has been installed. Digital watches, because they have no moving parts, will typically last longer on a set of batteries if you're not using the alarm or backlight function. Watches that use lithium batteries generally last two years or more between battery changes.

Based on your model watch, I would guess that your battery has run down too far to power the movement. A fresh battery will probably fix your watch. Hint: in the future, if you aren't going to wear your watch for a while, pull the stem out into the "set" position. That will stop the movement and extend the life of your battery. When you want to wear the watch, simply set the time (and date, if you have a date window) and push the stem back in.

If you have a Fossil FS4337 Chronograph, shaking the watch shouldn't be doing anything other than exercising your muscles; the movement is a battery-driven quartz movement whose movement is controlled only by whether the stem has been pulled out (stopping the movement and saving power) or whether the battery still has enough power to activate the stepping motors that move the watch hands. Based on the symptoms that you've described, I would suggest that it's probably time to change your watch battery.

Often, when a watch battery is running low but isn't completely dead, pulling the stem into time-setting mode will stop the movement and permit the battery to "rest," giving it (briefly) a bit more reserve amperage to put out when you push the stem back in. That's how you can sometimes get a quartz watch to run for a few minutes after the battery appears to be dead. That may also be why your watch has started running again after you've set the time and date.

Fossil analog quartz watches tend to use silver oxide (usually #377 or #379) batteries instead of longer-lasting lithium batteries. In ordinary use, I would expect a silver oxide battery to provide between 1 and 2 years of service before it needs to be replaced. I can't remember if Fossil chronographs (which also use quartz movements) use a silver oxide or lithium battery. Lithium batteries often provide an additional year or two of service in analog watches, compared to silver oxide cells; digital watches using them supposedly may last as long as 10 years with a lithium battery, assuming you don't use the backlight or audible alarm functions. Note, however, that these batteries are different sizes and different voltages, so you can't substitute one for the other.

Finally, none of this advice applies if you have a Fossil watch with a true mechanical movement in it. In that case, gently shaking the watch may spin the winding rotor enough to start the watch back up again. However, an even faster way of winding those watches is to use the winding / time set crown to wind the mainspring directly instead of relying on the geared-down action of the winding rotor. Automatic watches can bind up if they are not used for a period of time; the lubricating oil used in some of the pivots can harden--or at least provide enough resistance that the movement may require more initial force to start running than to continue running. That behavior usually indicates that it's time to have the mechanical movement cleaned and re-lubricated.

This watch is self winding and will stop after 2-3 days if not worn.

To wind it up,shake it from side to side gently for a few minutes (about 100-200 times) and this should wind it up sufficient to make it run for some time.

These watches thrive on being used and if you wish to maintain its operation, wear it at least every other day.

Sorry, I don't have a solution to this problem but I am experiencing the exact same problem with my Citizen Eco Drive Skyhawk A-T (JY0000-53E). It automatically sets the year to 2016 and the day to the previous day. For example, if it's currently Tuesday, the watch will indicate that it's Monday. And instead of the year being 2010, the watch will indicate that it's 2016. I have to reset my watch daily. I'm not really sure how long my watch has had this issue but I first noticed it in March, 2010.

Kristy,
Stress won't affect your watch's timekeeping ability, but position will. When you lay the watch down at night, in which position is it? Also, during the day, is your arm in a static position for long periods of time? A Rolex chronometer (like the Datejust) should run approx. 36 hours after being fully wound -- without any movement. If the watch stops dead, then there is a problem with the movement and/or rotor. If it losses time, I'd bet on a static position problem. Let me know the answers to those questions and I'll try to help you get to the bottom of the problem.

Your watch is a automatic. All automatics need to wind-up before being worn at first , or if not worn all the time. Automatics will work with-out being wound ,but will not keep time. Wind your watch at least 50 turns (using the crown) or shake about 150 times , and then try it . Automatics need that back-up power to insure it's accuracy.