Luminox 7050

[ekraus50]

My Luminox 7050 is my backup tritium watch. My other tritium Isobrite had a dead battery as usual i went for my back up and both were dead. Took both to the local jeweler to replace the batteries.

Got them back put the Luminox on and then went for a swim. Within minutes the watch looked like an aquarium. immediately took the back off and no grease and the o ring and looked like it wasn't in the grove either.

Flushed it with distilled water then blew it out and its in a jar of silica jell. Here is the questions.

What are my chances of it working after it dries out?

If not.

It has a Ronda 505 movement can I replace it myself? ( I already have the crown and guts out)

I think I can get the movement replaced for about $75 but its probably gona be at least $100.

As far as the isobrite, I am takeing it to the distribute that is local to have it resealed and tested.

[AndyGSi]

Welcome to the forum.

Swapping a movement is probably one of the simplest jobs with the most
difficult part for a newbie being removing and replacing the hands.

Ronda 505 movements are still available and depending where you are in the world as to the cost.

The thing you need to be aware of is the variations of this movement.

[Nucejoe]

  It might start and work for a few minutes/ hours,  then stop, or run slow. 

[ekraus50]

Thanks, The replacement seems pretty simple. Do I need to buy any special tools to remove and replace the hands?

Also as far as the variations I need some help here.

I measured the height and it was 6mm with the second hand on it.

The 2 505 movements that are the tallest are 5.4mm and 5.3mm.

I found a website that says that Luminox used a HQ505.6L movement that is 5.3mm. Cost $20.

So do I need to buy any special tools to deal with the hands?

 

[AndyGSi]

You need as a minimum what's called hand levers to remove them and a hand press of some sort to refit them.

So the first thing to confirm is if the HQ505.6L is correct.

Does yours have a date at the 6 o'clock position, any photos would help.

[ekraus50]

Well I dam near couldn't get the crown out but finally did.

Attached are the pictures.

[AndyGSi]

So it's not a HQ505.6L as yours has the Date@3.

Edit

Can you post a side view as best you can showing how the hands sit in relation to the dial.

Edited yesterday at 07:48 PM by AndyGSi

[ekraus50]

[LittleWatchShop]

I have serviced one Luminox in the past.  As I recall, the hands were really tight.  Also, because of the tritium tubes, they sit proud, so when using normal hand levers, you may not get enough leverage.  You need to protect the dial from scratches, so use thick paper or plastic under the hand lever.

[AndyGSi]

It's difficult to tell because of the dial ring but I expect it's the highest hand version they do know as a 'H6'

The only way to be sure is to remove the hands and dial and measure the cannon pinion.

Edited 7 hours ago by AndyGSi