Panerai Specialists

From naval instruments to collector watches

Giovanni Panerai founded the business in Florence in 1860. In the 20th century it supplied the Italian Navy with instruments, including luminous dive watches for its frogmen. Early Radiomir watches used radium-based lume, which gave the line its name, and the later Luminor took its name from a tritium-based luminous material Panerai patented in the late 1940s.

Panerai only began selling watches to the public in the 1990s, and Vendôme, which became part of Richemont, bought it in 1997. The modern brand is built on those military designs: big cushion cases, sandwich dials and the Luminor's crown-protecting bridge.

That history explains the shape of the watches. The cushion cases, oversized numerals and big crowns all came from instruments made to be read underwater by divers in poor light, and the modern designs keep those proportions on purpose.

In-house or sourced: what's inside your Panerai

Many earlier modern Panerais used movements based on established Swiss designs, including hand-wound calibers from the Unitas family, which are simple to service and familiar to most watchmakers. Since the mid-2000s, Panerai has developed its own P-series calibers, and parts for those come mostly through the brand.

Ask your watchmaker which caliber your watch has and whether they can source parts for it. That one question decides whether an independent or Panerai service is the better fit.

Hand-wound Panerais need winding every day or two depending on the caliber, and it's worth building the habit. Winding gently until you feel resistance is all it takes, and a watchmaker can show you how the specific movement should feel.

If you own an automatic Panerai and don't wear it daily, a winder isn't essential. Letting it stop and resetting it when you wear it does no harm to the movement.

The crown bridge, seals and water resistance

The Luminor's lever-operated crown bridge presses the crown against its seal, which is good protection when it works. The lever and crown seal still wear, and a bridge that doesn't lock firmly or a crown that feels loose should be checked.

Big cases need good gaskets. Have the water resistance tested at every service and more often if you swim with the watch, and stop wearing it if you see moisture under the crystal.

Remember that water resistance is something you maintain, not something the watch has forever. A Luminor that tested fine three years ago may not today, and a quick test before a beach holiday costs far less than a flooded movement.

If you ever open the crown bridge underwater by mistake, rinse and dry the watch and have it tested soon after. Most of the time no harm is done, but it's not worth guessing.

Buying a pre-owned Panerai

Panerai has a deep pre-owned market, and also a long history of fakes. Buy from a seller who will stand behind the watch, check that the reference (the PAM number) matches the case, dial and movement, and have a watchmaker open the caseback if anything feels off.

Strap changes are part of Panerai ownership, and owners swap them often. That's fine, but check that the lugs and spring bars haven't been damaged by repeated changes.

Look closely at the case and lugs. Panerais are large and get worn hard, and over-polished lugs lose their crisp lines. Ask whether the watch has been refinished and by whom.

A seller who will let a watchmaker open the caseback before purchase has nothing to hide. A seller who won't is telling you something too.

What to ask a Panerai specialist

Ask which caliber your watch uses and how they'll get parts. Ask whether they service the crown bridge mechanism and test water resistance after every service.

For older modern Panerais from the 1990s and 2000s, ask about originality. Early references from that era have their own collectors, and original dials and hands matter there too.

Reading a PAM number

Every modern Panerai carries a reference number, the PAM, and collectors use it to identify the exact model, case material, dial and movement. Two watches that look nearly the same can have different PAM numbers and very different values.

When you buy, check that the PAM on the paperwork matches the caseback and that the dial and movement are correct for that reference. A specialist dealer or watchmaker can confirm it quickly, and that check catches most of the fakes and mismatched watches on the market.

Keep a photo of the caseback and papers somewhere safe. If the watch is ever lost, stolen or sent for service, a clear record of its reference and serial makes everything simpler.

Sandwich dials and lume

Many Panerais use a sandwich dial: two layers, with the top one cut out for the numerals and markers and a luminous layer underneath. It gives the dial its depth and makes the lume very legible in the dark.

Sandwich dials age in their own ways. The lume can discolor and the cut-out edges can show wear, and on older references those signs of age are part of what collectors judge. Ask your watchmaker to leave the dial alone unless it's damaged.

Radiomir: the other cushion case

The Radiomir is the older design, with wire lugs or later lug styles and no crown bridge. It's a dressier, softer-looking Panerai, and its crown is more exposed than a Luminor's. That makes the crown seal and stem the parts to watch, and water resistance needs the same regular testing.

Radiomir and Luminor share a lot of history and many movements, so the same specialist can usually look after both.

How much does a Panerai service cost?

Hand-wound watches with widely used base movements tend to be the least expensive to service. In-house P-series calibers cost more and usually go through the brand. Crown bridge repairs, crystals and refinishing can be quoted separately, so ask for an itemized estimate before work starts.