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The Tudor Black Bay P01 is a 2019 production diver inspired by a late-1960s prototype proposed to the U.S. Navy—not a Navy-issued watch itself. Its signature feature is a movable end-link at 12 o’clock that stops the bidirectional bezel. Tudor paired that unconventional design with a 42 mm steel case, 200 m water resistance and a COSC-certified movement. The result is a capable modern specification wrapped in a shape that reviewers found polarizing.
What is the Black Bay P01 based on?
According to Tudor’s 2019 press release, the company began developing a technical watch for the U.S. Navy in 1967 as a proposed replacement for the Oyster Prince Submariner reference 7928. Tudor says the project did not enter production and that reference 7016 was ultimately adopted by the Navy. The P01 is a separate, modern production watch inspired by a prototype from that study, which Tudor says remained in its archives. Tudor’s historical account is the source for these details; they should not be read as independent confirmation of the procurement history.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
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Tudor Black Bay P01 Prototype Watch M70150-0001 | $4,250.00 | Buy on Amazon |
| 2 |
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Tudor Black Bay Ceramic Automatic Black Dial Men's Watch M79210CNU-0001 | $5,749.99 | Buy on Amazon |
| 3 |
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Tudor Black Bay 54 Automatic Chronometer Black Dial Men's Watch M79000N-0001 | $4,619.99 | Buy on Amazon |
| 4 |
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Tudor GMT 58 Black Bay | $5,449.98 | Buy on Amazon |
| 5 |
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Tudor Black Bay Automatic Chronometer Black Dial Men's Watch M79833MN-0001 | $7,499.99 | Buy on Amazon |
The name P01 stands for “prototype 1.” Tudor described the 2019 watch as bringing the prototype’s distinctive aesthetic into mass production roughly 50 years later. That lineage explains the P01’s unusual design, but it does not make the production model the original Navy proposal.
How does the P01 bezel stop work?
The bezel is bidirectional and has 60 notches with a 12-hour graduation. Its stop system is operated by the movable end-link at 12 o’clock: the end-link can be positioned to stop the bezel from rotating. This is the watch’s defining functional detail, as well as its most visually conspicuous one.
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- Tudor Heritage Black Bay Black Dial Men's Watch M70150-0001
Tudor says the historical prototype’s hinged end-link concept was the subject of a 1968 patent for a bezel-locking and disassembly system intended to help with maintenance. The modern watch does not literally reproduce that mechanism. Tudor’s product description says it “borrows liberally” from the earlier idea, using the mobile end-link to provide a bezel stop. Tudor’s product release describes the production system; SJX’s historical report gives the patent timeline as a July 1968 filing and a 1970 grant for Swiss patent 490706.
Tudor Black Bay P01 specifications
| Specification | Tudor’s 2019 release |
|---|---|
| Reference | 70150 |
| Case | 42 mm, satin-finished steel |
| Bezel | Steel, bidirectional, 60-notch, 12-hour graduated; stop system operated through the movable end-link at 12 o’clock |
| Crown | Screw-down, positioned at 4 o’clock |
| Dial and crystal | Domed black dial with date at 3 o’clock; domed sapphire crystal |
| Water resistance | 200 m (660 ft) |
| Strap and clasp | Hybrid leather-and-rubber strap with folding clasp and safety catch |
| Movement | Manufacture calibre MT5612, self-winding, COSC-certified, with silicon balance spring |
| Power reserve | Approximately 70 hours |
| Launch price | CHF 3,750 including Swiss VAT, according to Tudor’s 2019 release; this is a historical Swiss launch price, not a current global price |
These are Tudor’s published specifications for the reference, not results from independent testing. The official 2019 figures are in Tudor’s product release.
Rank #2
- Tudor Black Bay Ceramic Automatic Black Dial Men's Watch M79210CNU-0001
Why is the Tudor Black Bay P01 controversial?
The P01 looks unlike the more familiar Black Bay diver formula. Its 42 mm case, long-looking end-link arrangement and bezel-stop hardware give it a distinctive tool-watch appearance. The mechanism has a clear purpose, but it also makes the design harder to read as a conventional dive watch; someone drawn to restrained, traditional styling may find the same detail awkward that another buyer finds memorable.
Hodinkee described the P01 as polarizing and connected that response to its unusual locking bezel and departure from expected Black Bay shapes. SJX called it peculiar and questioned the practicality of its long case for discreet wear. These are individual reviewer assessments, not evidence of a measured consensus among owners or buyers. Hodinkee’s hands-on account also described the 42 mm case as wearing tall, while feeling less wide than its diameter suggested to that reviewer; fit impressions will vary by wrist.
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Rank #3
- Tudor Black Bay 54 Automatic Chronometer Black Dial Men's Watch M79000N-0001
Is the Tudor Black Bay P01 a real Navy watch?
No: the 2019 Black Bay P01 is a production watch inspired by a prototype Tudor says it developed as part of a proposed Navy-watch project. Tudor’s account says the project did not reach production and that reference 7016 was ultimately adopted instead. The P01 should therefore be understood as a modern interpretation of an archival prototype, not as the historical Navy-issued watch.
Who is the P01 for?
The P01 makes the most sense for someone who values its unusual bezel mechanism and prototype story more than conventional Black Bay styling. Before choosing it, consider how a 42 mm case with a distinctive end-link profile will sit on your wrist, whether you like the visible bezel-stop hardware, and whether the history adds meaningful appeal. A buyer seeking the familiar proportions and look of a conventional Black Bay diver may prefer that format; the P01 is the more characterful, less discreet choice.
Rank #4
- Tudor Black Bay 58 GMT "Coke" Automatic 39mm Black Dial Men's Watch M7939G1A0NRU-0001
Price and availability
Tudor’s stated CHF 3,750 price, including Swiss VAT, was the Swiss launch price in its 2019 release. It does not establish today’s price or availability in other regions. A Watches of Switzerland Australia listing showed AUD 6,710 including GST when accessed for this research, but that is a regional retailer listing and may change. Current production status and broader availability are not established by these sources. See the Australian retailer listing.
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- Tudor Black Bay GMT S&G Automatic Chronometer Black Dial Men's Watch M79833MN-0001
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
