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Old 15 June 2013, 07:40 PM   #1
~dadam02~
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AP RO 'Jumbo'Movement Differences?

Folks, i've recently become interested in picking up a Jumbo and a quick google has revealed that the 15202 comes as a variant with either the fabled 2121 movement or the newer in house 3120 movement.

Question to those in the know, how can one tell cosmetically which movement is which? Are there any obvious cosmetic differences between the two? Is it obvious which movement is which?
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Old 15 June 2013, 10:59 PM   #2
Submarino
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The Jumbo whether is ref. 5402, 15202 or the new 15202 Extra-Thin has always been fitted with calibre 2121. The discontinued ref. 15300 in 39mm and the newer ref. 15400 in 41mm are fitted with calibre 3120.

Here's a link to pictures of the 3120 so you can see what it looks like. http://www.watchcollectinglifestyle....t-caliber-3120
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Old 16 June 2013, 12:30 AM   #3
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Thanks for the clarification, looks like some duff info on t'interweb.
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