Seamaster 300 Big Triangle 166024

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Yes, maybe a change of the clasp and yes, period correct but not „correct for the model“,

kind regards Max
1116/575 would be correct for these Seamaster 300s. It just isn’t a common combination. Almost all the bracelets available for the Speedmaster Pro in the mid/late 60s and early 70s, were options for the SM300. However, as mentioned the clasp blades are incorrect replacements, which isn’t surprising. The design of some of the 1116 blades made them prone to breaking.

Photo from an old ad:
 
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Experience. The dial was replaced, hands were relumed,as the watch had some moisture in side and the tritium was deteriorated. The bezel is genuine, as should be for this case/year. This type doesn`t age much.

Thank you all for your comments, very interesting.
A naive question : if the bezel is original, is it not possible that the dial is too as they glow identically after being exposed to the light?
FYI, I exposed the watch a few cm under a spotlight before I took the pictures I included above

I saw other Big Triangle from 1970 with a dial quite similar to mine

 
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1116/575 would be correct for these Seamaster 300s. It just isn’t a common combination. Almost all the bracelets available for the Speedmaster Pro in the mid/late 60s and early 70s, were options for the SM300. However, as mentioned the clasp blades are incorrect replacements, which isn’t surprising. The design of some of the 1116 blades made them prone to breaking.

Photo from an old ad:

Thank you, nice ad indeed!
 
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Everything is possible, but it is quite unlike to have exhausted hands you got relumed and pristine dial, doesn`t make sense.
If you examine the watch with UV light, the second hand containing original lume will glow very little, and fad out immediately. The big hands and the dial will take some more seconds to fade out...
One of mine 165024 also came on 1116/575 bracelet.
 
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You are right, it would probably be very difficult to say for sure what has been replaced.

I was thinking :
  • maybe the hands tritium have deteriorated quicker than the one on the dial, like it seems to be the case with the minutes hand on the picture I inserted in my previous post. I understand there is a difference between the dial, where the tritium rests on the dial, and the hands where the tritium is "in the void" and therefore can shrink and fall. Could this have justified to relume the hands?
  • I guess a dial replacement would have been made by Omega. In that case, I would expect the hands to have been replaced too, and not be relumed?
  • Do we have an idea until when Omega produced dial replacements for Big Triangle?

Thanks again
 
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I assume, that lume on hands (minute hour, on seconds-hand?) and on the bezel are different.
q.e.d.
 
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I assume, that lume on hands (minute hour, on seconds-hand?) and on the bezel are different.
q.e.d.
Sorry, I am not sure I understand
Are you talking about the way they glow?
 
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Maybe you were talking about the dial and not the bezel, as there is not issue with the bezel which I understand is original?
 
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Probably all: hands , dial and bezel have diferent mixtures. And probably because this depends on the surface they will coat.
 
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You are right, it would probably be very difficult to say for sure what has been replaced.

I was thinking :
  • maybe the hands tritium have deteriorated quicker than the one on the dial, like it seems to be the case with the minutes hand on the picture I inserted in my previous post. I understand there is a difference between the dial, where the tritium rests on the dial, and the hands where the tritium is "in the void" and therefore can shrink and fall. Could this have justified to relume the hands?
  • I guess a dial replacement would have been made by Omega. In that case, I would expect the hands to have been replaced too, and not be relumed?
  • Do we have an idea until when Omega produced dial replacements for Big Triangle?

Thanks again

To your thinking:
The fact is, that the hands/dial doesn`t match.. This was a low cost repair, the tritium was over because some damp got int the watch, done by independent watchmaker, who did what he could for cheap: leave the second hand as is, hands he has relumed himself (easy job done quite often, as many watches also being reverted from radium), and has ordered just a dial, as this is not easy to do the relume. Service tritium dials were obtainable to early ninetees...