Reference:bubbleback: Difference between revisions
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Add corrected ref. 3135 record to Bubbleback index |
Add provisional reference 2240 evidence to Bubbleback index |
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! Reference !! Production !! Movement !! Case !! Key distinction | ! Reference !! Production !! Movement !! Case !! Key distinction | ||
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| [[Reference:2240|2240]] || 1930s–1940s catalogue dates; range unproved || 9¾-ligne automatic, 19j, centre seconds; caliber unresolved || 32mm steel tonneau; back profile unshown on specialist-catalogued examples || Bubbleback classification probable; a separately attributed watch has a domed back but no published reference engraving | |||
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| [[Reference:3131|3131]] || 1936–1948 || Cal. 620, 17j, sub-seconds || 32mm tonneau, 2-piece || First two-piece case Bubbleback; precious-metal only (9K/14K/18K YG & PG) | | [[Reference:3131|3131]] || 1936–1948 || Cal. 620, 17j, sub-seconds || 32mm tonneau, 2-piece || First two-piece case Bubbleback; precious-metal only (9K/14K/18K YG & PG) | ||