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Old 26 May 2024, 01:04 AM   #1
Watchwearer
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Power reserve of Rolex bubble back?

Can someone please advise me on the power reserve of a 1946 Rolex bubbleback?
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Old 26 May 2024, 04:08 AM   #2
Dan S
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Some of the bubbleback movements are often noted as having a 41h power reserve. I can't swear that this was an official Rolex specification, but it seems plausible. Of course, you would not necessarily expect an 80 year old watch to have the same performance.
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