The Omega Ploprof, short for “plongeurs professionnels” (professional divers), is Omega’s extreme saturation-diving watch. The original Seamaster 600m Ploprof of 1970 had a monobloc case and a locking bezel, and today’s Seamaster Ploprof 1200M is a 55 x 48mm titanium watch with a Master Chronometer movement, priced around $13,800 new. A Ploprof is also strong collateral: Borro lends up to 65% of a watch’s value, so owners can raise cash quickly without selling.
Omega Ploprof at a Glance
| Spec | Seamaster 600m “Ploprof” (1970) | Seamaster Ploprof 1200M (current) |
|---|---|---|
| Water resistance | 600 meters | 1,200 meters |
| Case | Steel monobloc (one-piece) case | Titanium, 55 x 48mm |
| Bezel | Rotating bezel with orange lock button | Ceramic or silicon nitride insert with push-button lock |
| Movement | Automatic | Co-Axial Master Chronometer Calibre 8912 |
| Helium protection | Monobloc case designed to keep helium out | Helium escape valve |
| Price | Vintage; varies by condition | About $13,800 new (dealer list); pre-owned about $7,000–$9,500 |
Own an Omega? Borro lends up to 65% of the value of luxury watches, with loans from $2,500, no credit check and funding in as little as one business day. Get a no-obligation quote or call 720-458-6788.
History of the Omega Seamaster 600m Ploprof
Omega developed the Ploprof in the late 1960s for saturation divers, who live for long periods in pressurized habitats breathing helium-rich gas. Tested with French diving company COMEX, the Seamaster 600m launched in 1970 with a one-piece case that kept helium from getting in, a large screw-down crown on the right and a bezel that could only turn when the orange button was pressed. Its oversized, asymmetric shape made it one of the most recognizable dive watches ever built.
The Modern Ploprof 1200M
Omega revived the design in 2009 as the Seamaster Ploprof 1200M, doubling its depth rating. Current versions use a titanium case, a helium escape valve and the Co-Axial Master Chronometer Calibre 8912, which is certified for precision and resistance to strong magnetic fields. Omega sells the Ploprof alongside the more mainstream Seamaster Diver 300M.
How Much Is an Omega Ploprof?
A new titanium Ploprof 1200M is listed by US dealers at about $13,800. Pre-owned examples have sold for around $7,000 to $9,500. Vintage 1970s Seamaster 600m Ploprofs vary widely with condition and originality, so get an expert valuation.
Can You Get a Loan Against an Omega Ploprof?
Yes. Borro lends up to 65% of a watch’s value, with a minimum loan of $2,500. A Ploprof 1200M valued at $9,000 could support a loan of up to about $5,850.
- No credit check and no personal guarantee. Your watch secures the loan, and Borro does not ask for personal or business financial statements.
- Fast funding. Once your loan is approved, funds can arrive in as little as one business day.
- You keep ownership. Your Omega is held in fully insured, secure safekeeping for the loan term and returned when you repay.
- Private and discreet. Borro has lent more than $1 billion to clients across the country and holds an A+ BBB rating.
Learn more about Omega watch loans with Borro, luxury watch loans, or compare the Rolex Deepsea.
Built for the Bottom of the Sea, Worn Everywhere Else
It does not look like a watch that wants to be liked. The Ploprof sits on the wrist with a heavy, asymmetric authority, its shape unmistakable from across a room, its orange bezel button a small flash of defiance against the dark dial. People who know, know. People who do not ask what on earth you are wearing.
And then you tell them. Developed for saturation divers who live in pressurized habitats, tested with COMEX, launched in 1970 with a one-piece case meant to keep helium out. A watch designed for a place most of us will never see. There is a delicious absurdity in wearing something made for the deep sea to a dinner table, and you will find you enjoy it more each time.
Pick up the titanium version and you feel the surprise first: that something so large can be so light. Press the lock button and the bezel gives way with a deliberate, mechanical click, one that rewards patience and confirms that every part of it was made with intent. It is a tool, but a tool crafted with an artist’s attention to detail.
Pieces like this earn a particular loyalty. You would not sell one on a whim. With Borro you can borrow against a luxury watch and remain its owner. The piece rests in secure, insured safekeeping, and when you repay, it returns to your wrist, as stubborn and as strange and as completely yours as it ever was.
Frequently Asked Questions
Can I borrow against my Omega Ploprof?
Yes. Borro lends up to 65% of a watch’s value, with loans from $2,500, no credit check and funding in as little as one business day.
What does Ploprof stand for?
“Plongeurs professionnels,” French for professional divers.
Is the Omega Seamaster 600m the Ploprof?
Yes. The original 1970 Ploprof was the Seamaster 600m; the modern version is the Seamaster Ploprof 1200M.
How much is an Omega Ploprof?
About $13,800 new from US dealers; pre-owned examples around $7,000 to $9,500.
How waterproof is the Omega Ploprof?
The original was rated to 600 meters; the current Ploprof is rated to 1,200 meters.
See how much your Omega could unlock. Borro’s watch loans start at $2,500, with no credit check and no personal guarantee. Apply now or call 720-458-6788 to speak with a valuation expert.



