There isn’t one two-tone green-and-blue Blancpain Fifty Fathoms Bathyscaphe Ceramic. The phrase points to several watches: the 2024 models pair black ceramic cases with separate green or blue dials, while other blue-dial Bathyscaphes combine blue with grey or black ceramic—or, in a 2025 interpretation, use a blue ceramic case. The reference number and the color of each component are the quickest way to tell them apart.
Which green and blue ceramic Bathyscaphe do you mean?
Blancpain’s November 2024 ceramic expansion included three watches with black ceramic cases: two three-hand models with date, one green-dial and one blue-dial, plus a blue-dial flyback chronograph. They are separate references, not a single watch with both a green and a blue dial. Blancpain lists the collection and specifications in its November 2024 announcement.
| Reference | Case and dial | Complication and movement | Power reserve | Case and water resistance |
|---|---|---|---|---|
| 5000 0140 01S | Black ceramic case; deep green dial | Three hands and date; Calibre 1315 | 120 hours (five days), as stated by Blancpain | 43.6 mm; 30 bar |
| 5000 0153 01S | Black ceramic case; blue dial | Three hands and date; Calibre 1315 | 120 hours (five days), as stated by Blancpain | 43.6 mm; 30 bar |
| 5200 0140 01S | Black ceramic case; blue dial | Flyback chronograph; Calibre F385 | 50 hours, as stated by Blancpain | 43.6 mm; 30 bar |
These are Blancpain’s published specifications, not independent test results. The 2024 announcement describes high-tech ceramic as nearly five times harder than stainless steel and 25% lighter; those comparisons are the manufacturer’s claims.
Other blue Bathyscaphe configurations
Grey ceramic case with blue dial: 5000 0240 O52A
This three-hand-and-date model is a different configuration from the black-ceramic 2024 blue-dial watch. Blancpain’s product page for reference 5000 0240 O52A specifies a satin-brushed grey ceramic case, sunburst blue dial and blue ceramic bezel insert. The page lists a 43.60 mm diameter, 13.80 mm thickness, 23.00 mm lug width, 30 bar water resistance and automatic Calibre 1315 with 120 hours of reserve. It offers sail-canvas and NATO strap choices.
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Blue ceramic case: 2025 interpretation
In a separate announcement dated 4 November 2025, Blancpain introduced blue ceramic Bathyscaphe interpretations with a blue ceramic case, sunburst blue dial and luminous bezel. The release describes two luminous treatments and gives a 43.6 mm case diameter, 30 bar water resistance and Calibre 1315 with 120 hours of reserve. See Blancpain’s announcement, “Fifty Fathoms Blue Bathyscaphe: the Art of Light”. This is not the grey-case 5000 0240 O52A.
Blue dial with complete calendar and moon phase
Reference 5054-0140-01S is another distinct watch: Blancpain’s June 2024 release identifies it as a black-ceramic Bathyscaphe with a blue dial, complete calendar and moon-phase display. A black ceramic bracelet is an option described for this configuration. It is not the three-hand green-dial model. Details appear in Blancpain’s June 2024 release.
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- Blancpain Fifty Fathoms Bathyscaphe Automatic Blue Dial Men's Watch 5100-1140-O52A
How to choose between them
- For the green dial: look for 5000 0140 01S, the black-ceramic three-hand/date model.
- For a blue dial in a black ceramic case: distinguish the three-hand/date 5000 0153 01S from the F385 flyback chronograph 5200 0140 01S.
- For a grey ceramic case and blue bezel insert: the reference is 5000 0240 O52A.
- For a blue ceramic case: use Blancpain’s 2025 blue Bathyscaphe announcement to identify that newer interpretation; do not confuse it with a blue dial in a differently colored case.
- For calendar and moon-phase displays: check 5054-0140-01S and confirm its exact bracelet or strap configuration.
Strap and bracelet details are configuration-specific. Blancpain documents sail-canvas and NATO choices for 5000 0240 O52A and a black ceramic bracelet option for 5054-0140-01S; confirm compatibility for the precise reference before purchasing a separate strap.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the specifications mean in practice
The three 2024 black-ceramic releases share a 43.6 mm diameter and 30 bar water-resistance rating, but differ in display and movement: the two date models use Calibre 1315, while the flyback chronograph uses Calibre F385. Blancpain gives 120 hours for Calibre 1315 in those models and 50 hours for F385. The official 5000 0240 O52A page also lists 120 hours for Calibre 1315. These figures describe Blancpain’s published specifications, not a comparative assessment of accuracy, comfort or real-world performance.
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Before ordering, verify the complete reference number, case color, dial and bezel details, complication, and included strap or bracelet on the seller’s listing. The cited official pages establish product specifications, but not current local pricing, stock, or the authenticity of third-party marketplace listings.
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