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Old 18 August 2020, 10:39 PM   #1
Gravina
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Icon5 Rolex GMT 1675 caseback II-66 Strange number

Hello guys, does anyone know what this number "545"

Thank you very much:afirmativo:
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Old 18 August 2020, 11:40 PM   #2
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Hello guys, does anyone know what this number "545"

Thank you very much:afirmativo:
That’s interesting. I don’t know but if you asked on the Vintage Rolex Forum (it’s a different site all together) I’m sure someone over there would know.
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Old 18 August 2020, 11:56 PM   #3
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Mestre Gravina, I'm sure those on the vintage board will help you. For those who may not remember from WUS and other forums, mr. Gravina is a highly respected collector, who even provided vintage pieces to the Omega museum in Bienne in the past. Nice to see you posting on TRF.
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Old 19 August 2020, 01:10 AM   #4
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Gravina is well known at the VRF; :)
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Old 19 August 2020, 01:12 AM   #5
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I would guess the last digits of the serial is 545. Then it’s assumed to be any kind of a special order watch.
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Old 19 August 2020, 02:48 AM   #6
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Mestre Gravina, I'm sure those on the vintage board will help you. For those who may not remember from WUS and other forums, mr. Gravina is a highly respected collector, who even provided vintage pieces to the Omega museum in Bienne in the past. Nice to see you posting on TRF.

Thank you very much friend
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Old 19 August 2020, 02:49 AM   #7
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Gravina is well known at the VRF; :)
It's a pleasure to see you here
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Old 19 August 2020, 02:59 AM   #8
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I would guess the last digits of the serial is 545. Then it’s assumed to be any kind of a special order watch.
Exactly, these are the last three numbers in the serial .... Thank you very much!
The question now is another, it is in a two-tone 1675/3 ......... is this possible in the year 1966?
I believe that these only in the 70's
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Old 19 August 2020, 03:03 AM   #9
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Steel watches were sometimes converted to two-tone during it’s lifetime. Do you know anything about it’s history? Having the last three digits in the caseback indicate it is something somewhat special to begin with.

Serial 1.4-1.5m?
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Old 19 August 2020, 03:10 AM   #10
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Steel watches were sometimes converted to two-tone during it’s lifetime. Do you know anything about it’s history? Having the last three digits in the caseback indicate it is something somewhat special to begin with.

Serial 1.4-1.5m?
Hi

Unfortunately no story... was acquired at an antiques auction in Rio de Janeiro.

Serial: 1.43....
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Old 19 August 2020, 03:13 AM   #11
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Hi

Unfortunately no story... was acquired at an antiques auction in Rio de Janeiro.

Serial: 1.43....
Safe to say it didn’t start like that as the big GMT hands came around 1.6. And I am sure you are right the two-tones came later. This originally started as a gilt steel GMT. It would be interesting to know the story behind the special order.

Enjoy your watch!
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Old 19 August 2020, 03:18 AM   #12
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interesting.... I thought only DRSD had that on their case backs
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Old 19 August 2020, 04:54 AM   #13
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Perhaps the Two Tone conversion is the special-order.
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Old 19 August 2020, 06:31 AM   #14
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The normally accepted introduction of the two-tone GMT 1675 model is on or around 1970.
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Old 26 August 2020, 04:50 PM   #15
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Perhaps the Two Tone conversion is the special-order.
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Old 26 August 2020, 05:06 PM   #16
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I had a very early tt gmt. Serial number evades me, but it was a full set sold in July 72, but I do remember serial number relating to around 1969. It also had hooked 7 datewheel. I understood that was about as early as they came. I can always look back to see if I have any more details.
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Old 26 August 2020, 06:56 PM   #17
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Perhaps the Two Tone conversion is the special-order.
Because the 1675/8 did exist with that dial and handset.
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Old 26 August 2020, 07:48 PM   #18
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interesting.... I thought only DRSD had that on their case backs
No, full or partial case numbers are found in a number of instances including some other, highly desirable models...

As for the versions in different metals, Patrizzi shows an 18ct with a 1.2m case but I've not seen a bicolour as low as this.

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Old 27 August 2020, 02:58 AM   #19
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Nice to know. Thank you.


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Originally Posted by Haywood_Milton View Post
No, full or partial case numbers are found in a number of instances including some other, highly desirable models...

As for the versions in different metals, Patrizzi shows an 18ct with a 1.2m case but I've not seen a bicolour as low as this.

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Old 27 August 2020, 05:20 AM   #20
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Because the 1675/8 did exist with that dial and handset.
Not with that handset at 1.43m. I may be wrong but early gold 1675s had the brown dial only. Not black.

I’m fairly certain this watch left the factory as a gilt dial steel watch.
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