【New Unused】BEAMS Color Military Watch Blue (Battery Replacement Required)

This is a BEAMS watch.
Purchased approximately 8 years ago.
I believe it can be used by anyone, regardless of gender.

After a considerable amount of time since purchase,
I opened the product once with the intention of using it, but I never ended up using it.
(Reason will be explained later)

I have opened it again this time for the purpose of taking photos.

There is a transparent plastic protective sheet on the watch face (it may be difficult to see in the photos).

When I purchased it, the description stated that it came with a trial battery,
but it has not been replaced.

I didn't know how to replace the battery,
and I didn't know what size battery to use,
so I shamefully left it as is.

The instruction manual does not include information on battery size or replacement methods.
(It is an instruction manual for things like the model name and how to set the time.)

We kindly ask for your understanding if you are able to accept these conditions.