Lorus watch

[Channel Hopper]

Any watchmakers out there ?

Our daughter's birthday present is a Lorus watch, suitably waterproofed, though it appears not to have come with a battery.

So I assume I need to open up the back, on this there are four screws in the corners, but they are hidden by the strap, which is a one piece moulded affair.

There are two tiny pins that I might be able to force out to give some additional space, but they are absolutely tiny, pressing them with the end of the smallest screwdriver doesn't seem to have any effect.

So, any ideas ?

Once it is open of course, and I find no battery in there then the fun begins to find a suitable one.

 

[Topper]

It would be unusual for it to not come with a battery, non waterproof versions sometimes come with battery fitted and a slide out sheet of acrylic that you pull to activate, but a waterproof one I would expect to be tick tocking as it were, send it back from whence it came not fit for the purpose

 

[Channel Hopper]

I'm unsure how a slide out piece of plastic could be enabled on a waterproof watch unless it is inside waiting, but hoping the battery is there once I do get it opened.

 

[Channel Hopper]

The instruction sheet does say 'take to a watchmaker for battery replacement'.


As if....

 

[sonnetpete]

Saw the thread title and now quite disappointed this isn't about a new meteor shower we have to watch out for...

 

[Stevenvc19]

The instruction sheet does say 'take to a watchmaker for battery replacement'.

If you want to keep the watch waterproof, I recommend you to take it to a watchmaker, because there is no way you aro going to get this watch perfectly closed.
Even watchmakers that replace the batteries in my watches tell me that the watch isn't waterproof once they opened the back. And if you want it waterproof, they have to "test" it, and they ask an additional cost for that.

If the waterproofing is not that important, you can open the watch and see for yourself off course.

 

[jeallen01]

a waterproof one I would expect to be tick tocking as it were, send it back from whence it came not fit for the purpose

Agreed.

 

[Channel Hopper]

If it had been my gift I would of course have checked functionality before wrapping it up.

Will have a go tonight with the tools at hand.

 

[Terryl]

Over the many decades I have been around, I have had to do this operation several dozen times to many types of watch.

The little metal pins are spring loaded, they will be one of the tough jobs getting them out and back in, when getting them out they will try their best to go back in, one way to keep this from happening is with a slight pull of the stap to one side, this will keep the pin from springing back into the mounting hole, be careful as it will try and spring out an hide behind something, or fly out and go behind the desk.

Once you get the case off, and the battery replaced, the next toughest job will be keeping the very tiny "O" ring in place (if it moved) without misalignment when you replace the case, this would cause the watch to be reclassified in the non-waterproof category.

And the last job and sometimes the hardest, is replacing the straps, the little spring loaded pins will spring all over the place, even behind the desk, what I did to keep this from happening, was to take a very small flat blade screwdriver, (an extra one, and a bit wider then the pin) and use a small punch to put a small cup shape in the blade, this kept the spring loaded pin from trying to find a hiding place after it's escape.

Also the little pin you show in you last photo may not be the one holding the strap to the watch, they should be located between the watch and strap pivot point, it may be hard to get a small screwdriver in there, but a very thin watch makers flat bladed one may work.

Pin location.



Now days I find it harder to do this job as the old fingers have a bit of a shake to them.

 

[Channel Hopper]

Thank you. The area you have highlighted has a pair of plastic caps on the outside that look just like part of the case moulding. Will invesigate further in a moment.

(while I pour out another glass of chardonnay, or is it sauvignon blanc ?)

 

[Channel Hopper]

This one , though it looks like it is part of the complete moulding

 

[Channel Hopper]

A side image shows the potential angles of removing the metal pins, that might give enough movement of the strap to clear the screws.

Note the plastic is of two colours

 

[Terryl]

As far as I can tell, those pins you are looking at don't hold the strap to the watch, the strap pins are more then likley where I indicated in my last post, if you have a jewlers loop, take a look where I indicated first.

 

[Terryl]

But after some looking around I maybe wrong, take a look at this.

https://www.youtube.com/watch?v=glO9ReX1ZbY

Do you have a model number?

 

[Archive-10]

A lot of pins are spring loaded and you have to get between the strap and the housing to remove the pin with a very fine blade screwdriver


When you move the strap the centre point of movement will be where the pin is. Looking at the images the silver " dot " is a red herring and would not be the centre of movement.
The following link shows what I mean by the centre point of movement ( or swivel point ) but in the video is obvious!

 

[Archive-10]

Sorry. While I was posting looks like Terryl has found a better answer
If you hold the watch at 45 degrees looking from the back you should be able to see if the pins line up with the round part of the housing

 

[Channel Hopper]

But after some looking around I maybe wrong, take a look at this.

https://www.youtube.com/watch?v=glO9ReX1ZbY

Do you have a model number?

Z013
But that video shows a similar watch

Thanks

 

[Channel Hopper]

So, about an hour and one battery later. Turns out it was dead as a result of the main board is on the blink. A continuous alarm bleeping as soon as the battery is installed would have flattened the original in hours.

So, back to the supplier, if they have kept the receipt.

(the instructions that came with it confirm this is a fiddly timepiece, I have a Seiko Chrono thing from about 30 years ago and it is a doddle to use compared to this one)

 

[Topper]

It would be unusual for it to not come with a battery, non waterproof versions sometimes come with battery fitted and a slide out sheet of acrylic that you pull to activate, but a waterproof one I would expect to be tick tocking as it were, send it back from whence it came not fit for the purpose

Q.E.D.

 

[Terryl]

When you had it open did you see a very small reset pad(s) or button?

Some watches may need a reset after the battery is changed out, hate to say it but you may need to open it up and take a look with a magnifying glass for a small pad (or two) or other type of contact, then a short to ground, or between the two pads or the negitive side of the battery may be needed to reset the watches CPU.