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Romes55 · 20 January 2023, 12:52 AM

Hello,

My great grandfather was a watchmaker from the 1920s-1980s and inherited his entire “shop”.

I came across a Rolex Movement that I haven’t been able to find any thing on. It’s marked as a 3998 movement and my guess is pre 1950.

Any help of info would be much appreciated!

Thanks!A2079A41-EA5C-4760-9DF1-CD75A61B5C55.jpeg

TimeToGo · 22 January 2023, 09:21 PM

.

Welcome to the Forum!

To help you with your research, search for the size "N-A" which is in the caliber 620 / 630 series. Maybe refer to a bubbleback movement.

20 January 2023, 12:52 AM	#1
Romes55 "TRF" Member Join Date: Jan 2023 Location: Usa Posts: 1	Rolex 3998 Movement Help Hello, My great grandfather was a watchmaker from the 1920s-1980s and inherited his entire “shop”. I came across a Rolex Movement that I haven’t been able to find any thing on. It’s marked as a 3998 movement and my guess is pre 1950. Any help of info would be much appreciated! Thanks!A2079A41-EA5C-4760-9DF1-CD75A61B5C55.jpeg

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22 January 2023, 09:21 PM	#2
TimeToGo 2024 SubLV41 Pledge Member Join Date: Sep 2008 Location: North Florida Posts: 16,702	. Welcome to the Forum! To help you with your research, search for the size "N-A" which is in the caliber 620 / 630 series. Maybe refer to a bubbleback movement.

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