Manual Winding Jumbo 2506

“Jumbo”

Omega reference 2506, a vintage Jumbo / oversize manual-wind reference. The CSV structured ref is 2506 with oversize 38.5 mm wording; external examples corroborate 2506 / 2506-5 / 2506-10 Jumbo watches with Cal. 283 and roughly 37-38 mm cases.

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