Model 7391. How do I open the back? - Geneva Watches

there are a couple of ways this may open.
the back is a press back and you need a case knife to open it or it is serviced through the front and a pump is required to pop the glass off. I would say it is a press back.

Take it to K-Mart jewelry dept. and ask them to take the back off to determine the battery you need. They'll do it and only charge you for the battery.

Google my friend. Try in your watch brand and model. I wish I could help you more. Normally it should have a small slot for a tiny screw driver to be placed for openings.

read the instruction manual, Geneva Watches with Two or Three Hands

1. Pull the crown out until you feel a click.
2. Turn the crown counterclockwise until you have the correct time.
3. Push the crown back in to set the time.

Geneva Watches with Two or Three Hands and a Date Window

1. Pull the crown out until you feel two clicks. This second click position allows you to set the time.
2. Turn the crown counter clockwise until you have the correct time. Push the crown all the way in to set the time.
3. Pull the crown out until you feel one click. This first click position allows you to set the date.
4. Turn the crown counterclockwise until you have the correct date. Push the crown back in to set the date.

Multi-Function Geneva Watches

1. Pull the crown out until you feel two clicks. This second click position allows you to set the day.
2. Rotate the crown counter clockwise until you have the correct day. Push the crown in to set the day.
3. Pull the crown out until you feel a second click to set the time or the 24-hour hand.
4. Turn the crown clockwise until you have the correct time, then push the crown in to set it.
5. Pull the crown out just one click to set the date. Turn the crown clockwise until you have the correct date, then push the crown in to set it.

Geneva Chronograph Watches

1. Pull the crown out two clicks. This second click position allows you to set the time.
2. Turn the crown clockwise until you have the correct time, then push the crown in to set it.
3. Pull the crown out just one click to set the date. Turn the crown clockwise until you have the correct date, then push the crown in to set it.
4. Stop and start the chronograph by pressing the PA button, located above the crown.
5. Reset the chronograph by pressing the PB button just below the crown. The PB button returns the chronograph second and minute hands to their original positions of zero.

Automatic Geneva Watches

1. Wind the mainspring by turning the crown 15 to 20 times clockwise.
2. Pull the crown out until it clicks.
3. Turn the crown counterclockwise until you have the correct time, then push the crown in to set the time.

Tips & Warnings

• Do not set the date or time between 8 p.m. and 3 a.m. to avoid damage to your Geneva watch. The gears sit too close together during these times.
• If your Geneva watch becomes wet, wipe it dry as soon as possible. Keep your watch away from saunas and hot tubs, as the extreme heat diminishes the watch's water resistance.

Read more : http://www.ehow.com/how_6134550_set-date-time-geneva-watch.html

you have to tell your watch model no. and what brand it is so that i can take a look at the back of your watch and i can tell you how to open it or anything you want to know on fixing it.

Most of the time you can find the serial and or model number on the first link that is attached to the case of the watch on the back. Often there is a serial number on the back of the case itself. If not in any of these locations you may have to open the case and look on the inside of the case. Be careful with opening case, if you're not comfortable opening the case yourself take it to a reputable jeweler.
If there are no serials on the watch it is probably a knockoff or replica.

Hope this helps.

I do not believe that is a battery model that I have ever heard of . The best thing to do is to open the case and take out the battery , it should state the model number on the actual battery. If you have a hard time after that please let me know and I can help you out further but the c275 is not a watch battery model number.

mcdevito75 here, Even with the proper tools we still have to improvise at times, Instead of useing your case opener from your tool kit, use a steak knife or similar with a sharp edge inside that groove you"ve described, the cover will pry off.

The battery is CTL 1616 and I had the same occurance when I opened up my model Casio model 3043. I needed to use the battery to test my model 2767 and find out if a new battery would bring it back to life (yes, it still lives). After replacing the battey back into my 3043, I jumped the (ac) to (-) and at first the watch would indicate all was well but then it would revert back to "open". I tried over and over to try and get the "open" display to clear but I was not successful. I then thought to go ahead and replace the back on the case to see if the three contact springs would change the display and sure enough, "open" no longer was in the display. The watch works perfectly as before. As for the 2767, as soon as I jumped the (ac) to (-) the "open" display went away. There is only one spring contact to the back case on the 2767 model. Unfortunately I do have an extra spring that fell out when I opened it up and I have no clue as to where it goes. I have not found anyone who can help me on the location for the shorter spring. Any advice would be most helpful.