How to remove back of luxurman watch to change battery

Undo the screw with a pro-grade jewellers screwdriver.... or .....

Tip & How-To about Watches

Changing Watch Batteries
Lots of posters ask "what is the battery in my (name of watch)" with a view to changing it yourself. This is a bad idea for many reasons. You don't have the tools or knowledge to remove a rotary screw on back, or the gasket sealant for a waterproof watch. Some fashion watches have 4 traditional screw and need professional grade jeweler screwdrivers. Also, there are about 20 batteries commonly used in watches, in various sizes and internal technology, Lithium Ion, Silver Oxide and Manganese Alkaline. If you buy them, you generally have to buy 10!

Don't sweat the details. Just take the watch to your local jeweler. They have all the batteries at hand and the tools to remove the back. It is done whilst you wait for $8 to $15!

Posted by ADMIN... on Dec 31, 2018

If it is indeed a screw type back it will have indentions ON the back (6 to 8). A special tool is required to remove the back without damage to the watch back. Any reputable jewelry store should be able to remove the back. If there are no indentions then it should be a pop back. Some watches do not have a slot to slide a pry tool under the back. You have to use a sharp knife..taking appropriate safety precautions.

Check the top around the crystal. Some of those watches came apart from the top of the watch. Generally a few screws to remove. If no screws then the back pops off. Not easy but it may be the way in.
Again, if it's a decent piece go to a jeweler to do the work. Should be under $10.00. to do it.

thank you, gabe.

Many watches the back panel (that rest againt your wrist) pops off. Look for an indention, if you see one place a small screw driver in it and pop off the cover. Some also have nothes lining the diameter of the back plate, those are made to screw off, there are special tools to accomplish this task. You can use small tools to rotate and release the rear covers on this type of watch but you must be very caseful not to scratch or damage the watch surfaces. Most watch stores can replace the battery for you for free or really cheap.

It's not as easy as popping off the back like some watches to replace the battery. The 4 screws on the top bezel are not the ones to remove. Look at the back side of the watch and you'll see 4 really tiny pinholes. You'll need a jewelers screwdriver small enough to fit into the holes to remove the 4 screws. Once you do that, the two halves of the watch come apart with a little pressure. It takes a little prying to get the case to separate. Once you do that, you'll see the battery. Be careful with the waterproof gasket as you'll need to put that back in the same position to keep the case sealed. The gasket is really delicate. You might consider taking it to a watch maker to change out the battery if you don't have the tiny (and I mean really tiny) screwdriver to remove the 4 back screws.

If you take a look at the back of the watch, look for screws holding on the back plate. If there are screws (usually, if they are there there is one in each corner -- unscrew them. If there are no screws in the back of the watch, look VERY carefully at where the backing for the watch connects to the front piece of the watch. There should be a small indentation somewhere along the rim -- use a knife or a small screwdriver in that groove and pop the watch backing off.
Once you have the back of the watch off, you will see the battery right there. Sometimes they just pop out (held in by the watch back) ... sometimes there is a small piece of metal holding it in (in which case you should try to rotate the metal piece off the battery -- don't bend it).
Once the battery is out, take it to a store that sells watch batteries and match the battery type exactly (a lot of watch batteries look the same, but you need an exact match). Put the new battery in, cover it with the metal tab (if there was one) by rotating the tab back over the battery like you found it. Put the watch backing back on (and replace the screws if there were any).
Hopefully, that will kick start your watch for you, and you should be all set :-)

Unscrew or pry off the case back. Remove the metal strap holding the battery in place. Sometimes you have to remove screw in the metal strap. Look on the battery for the type and order by that number. Put back in with fingers or plastic tweezers. Do not use metal tweezers as it will short the battery.

Identify first if it is a "screw on back" or a "pop off" back. Screw on backs have multiple indentions on the caseback where a special tool fits in the grooves to twist it on and off. If it is a screw type back then you will either need to buy a pricey caseback wrench or take it to a jewelry store that changes watch batteries.
A pop off back will have a smooth caseback with no indentions on it.
Most of these are "pop off" backs. to pop the back off get a very sharp blade and apply pressure at about a 30degree angle between the case and the caseback on the underside of your watch. From there you should be able to pry it and it should pop right off. Another way is to put a razorblade between the case and caseback, tap the blade with a small hammer (lightly!) and then pry the back off.

The plastic wrist band doesn't have to be cut away. You need to dislodge the spring-loaded end of the pin from the hole in the plastic with the blade of a sharp thin knife.

The you proceed to lift one of the 4 snaps to open the cover. The battery is under a white translucent inside cover.

The original battery was Sony SR621SW.

Pay attention to the rubber seal ring when putting the watch back together.

You need to pry it open.

I used an X-acto knife