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4 December 2014, 09:25 AM | #1 |
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Planet Ocean 2500 question
Many of the posts about the discontinued Planet Ocean 2500 series watches include a letter desigination...A...B...C...D.
Will someone enlighten me about the differences and how one determines the letter designation? Thanks in advance and Happy Holidays! |
4 December 2014, 02:05 PM | #2 |
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They're different iterations of the caliber 2500 movement. A and B models are most troublesome because of the way it lubricates the coaxial mechanism. The watch can seize. The C models have fewer problems and with the D they redesigned the whole thing. That's it in a nut shell. Usually this question is like kicking a hornets nest, so if you dig deeper, prepare for wildly varied opinions.
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4 December 2014, 09:53 PM | #3 |
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Thanks for this information, Joe.
How do I determine which one of 4 movement variants is used in my PO 2500? |
4 December 2014, 11:49 PM | #4 |
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Set your date to the 10th, take a picture of the date and post it or PM it to me. I can tell from the date font
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5 December 2014, 08:06 AM | #5 |
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If the number one in the date has a serife i.e. 1 vice a straight font i.e. l it is a 2500D. The 2500D differs from the A, B and C in that it is a three tier co-axial escapement, like the caliber 8500, vice a two tier escapement.
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5 December 2014, 10:00 AM | #6 |
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Sans serif it can only be a C
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5 December 2014, 10:37 AM | #7 |
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Here u go
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9 December 2014, 11:41 PM | #8 |
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Very interesting and helpful. I have a late model PO 2500, will have to check when I get home. Thanks.
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10 December 2014, 05:26 AM | #9 |
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Also, Planet Oceans only came in C or D. By the time the PO was released Omega had already phased out A and B.
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20 January 2015, 01:45 PM | #10 | |
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Quote:
I wouldn't really worry about it, much. The 2500 movement is still one of the most accurate made. I actually wanted a 2500b movement in my Aqua Terra. It's fun to have one with a 28,800 bph second hand, which was lowered to 25,200 in subsequent co-axial movements. |
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