Question about 1675- possible first vintage purchase

[jrlmsla]

Good evening all,
I’ve been a lurker here for a long time. Never had anything of value to say and not a Rolex owner… yet.
I own a few dozen watches Squale, Seiko, Laco, Sinn and micro brands. But I’ve been er owned a “luxury” or higher dollar timepiece. Mostly because I could never decide on which one. As if one would be enough.
Nevertheless here I am again. This time with a question. Basically how do you determine what is or isn’t something that is ok. I’m not worried about real vs. fake.
I was offered a 1675 at what seems to be a good deal. Seems to be because I don’t know really what to look for. After doing some homework and looking through the forum here is what I think it is:
Serial number puts it at 1964
Case is worn/polished with no sharp beveled edges.
Dial is a type 1 I think. Long E. But maybe service dial, although I didn’t see any examples of a long E service dial.
Large GMT hand but that fits serial number.
Bezel is age correct.
Bezel insert—— I think this is aftermarket. Which is the red flag
How much does that affect the value of a watch?
Is there anything else I’m missing?
On to the pics:

[jrlmsla]

[jrlmsla]

I don’t know the rules of the forum so I won’t post the price I was offered. Unless it is kosher

[Dan S]

Can you please indicate the first few digits of the serial number. If it is 1.7M, the watch is more likely from 1967, not 1964, which would be ok for a matte dial. What made you think 1964?

You would want to factor the price of a period-correct insert and a bracelet into the value. Those two items are often sold separately on the open market, so it's not too hard to find comps.

It's generally helpful to indicate the asking price.

[jrlmsla]

Originally Posted by Dan S

Can you please indicate the first few digits of the serial number. If it is 1.7M, the watch is more likely from 1967, not 1964, which would be ok for a matte dial. What made you think 1964?

You would want to factor the price of a period-correct insert and a bracelet into the value. Those two items are often sold separately on the open market, so it's not too hard to find comps.

It's generally helpful to indicate the asking price.

Serial #172xxxx
1964- I’m not sure where I got that other than google search for serial numbers. But I could be wrong.
I meant Mark 1 dial.
I think the bezel is after market/fake because it’s very black, numerals appear engraved? Almost looks like a ceramic. Also I read black bezels didn’t appear in 60’s models.
Most info I have is from GMTmaster1675.com
Asking price: $9500

[jrlmsla]

This is where I got the year 1964

[Dan S]

Lucky for you, that table is garbage. 1967 is more likely, and if you are using the GMTmaster1675.com site, you will probably see that the Mk1 dial is consistent with that serial.

If dial and hands are original to the 1.7M serial, I'd say they should glow green under UV excitation. The case is pretty heavily polished as you noted (edges are rounded and lug holes show some cratering), but the crown guards and lugs still appear to be pretty thick.

If you are planning to add a period correct bracelet and insert, figure something like $4k-$5k depending on the style of bracelet and the quality of the insert. You could have the case refinished for about $600.

[jedione65]

I think that chart is pretty wrong

[jrlmsla]

Originally Posted by jedione65

I think that chart is pretty wrong

Good to know! That’s what I’m here for. What can you tell me?

[springer]

Originally Posted by jrlmsla

Serial #172xxxx
1964- I’m not sure where I got that other than google search for serial numbers. But I could be wrong.
I meant Mark 1 dial.
I think the bezel is after market/fake because it’s very black, numerals appear engraved? Almost looks like a ceramic. Also I read black bezels didn’t appear in 60’s models.
Most info I have is from GMTmaster1675.com
Asking price: $9500

The insert appears to be from a sapphire model from the late 1990s through late 2000.

[0nly5iv3Digits]

That insert is indeed GEN - JP is correct. But it is the wrong era for sure. Belongs to a 16700/16710. The correct insert would have serifs on the "1's", "2's" and "4's"

[jrlmsla]

Originally Posted by 0nly5iv3Digits

That insert is indeed GEN - JP is correct. But it is the wrong era for sure. Belongs to a 16700/16710. The correct insert would have serifs on the "1's", "2's" and "4's"

So at least there is some value in the insert to make up for purchasing a correct one!
Thanks for the info.

[Dan S]

Originally Posted by jrlmsla

So at least there is some value in the insert ...

Just a small fraction of the value of the correct insert.

[springer]

Originally Posted by jrlmsla

So at least there is some value in the insert to make up for purchasing a correct one!
Thanks for the info.

[jrlmsla]

How about the rest of the watch. Everything check out?
Is $9500 a good, great, fair deal?

[1665fan]

Average watch overall……have a bracelet?

[TuRo]

Probably a zinc sulphide so should lume up 10-15 secs.....60° service plexi and a later insert. Needs a 6251h or 7836 (£600-900). Broadly £7800 is about on the money I'd say given the soupçon of demerits. Spend another £4k or so on it and you've got a £13-14k watch.