Editorial
The PAM00610 makes the case for manual-wind with a single number: eight days. Wind it on Sunday, and you still have reserve the following Sunday. That power buffer, built into Panerai's in-house P.5000 caliber, is the reason this watch has a following.
Panerai introduced the Radiomir 8 Days PAM00610 in 2012 as a steel-cased expression of the P.5000, the brand's first in-house manual-wind caliber with a serious power reserve. The Radiomir lineage traces back to Panerai's pre-commercial military era, when oversized cushion cases and wire lugs were functional requirements for Italian Navy divers, not design choices. The PAM00610 carries that case architecture forward in 45mm steel with a clean sandwich dial and the power reserve display at 12 o'clock, showing seven complete winds.
Production ran until 2020, when Panerai consolidated the Radiomir collection around updated references. It was never a high-volume piece, which keeps the used market reasonably tight.
The 45mm case sits well outside contemporary sizing preferences, and there is no avoiding it: this is a large, thick watch built for wrists that can carry it. Verify the crown and crown-protection device are intact and functioning correctly before buying; replacement parts for discontinued references can extend service timelines. The power reserve subdial hand is a delicate component, and examples that have been dropped or mishandled sometimes show erratic reserve indication without other visible damage.
Confirm service history if possible, since the P.5000 has a complex mainspring system spanning two barrels, and a watch that has sat unwound for years benefits from a fresh service before regular wear. Dial condition matters significantly on the secondary market: the sandwich construction can show moisture intrusion at the edges if the case seal has degraded.