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The green-dial Blancpain Fifty Fathoms Bathyscaphe Chronographe Flyback is listed in reference 5200 0153 01S with a black ceramic case and matching ceramic bracelet. Blancpain specifies a 43.60 mm case, 15.25 mm thickness, 30-bar water resistance and automatic F385 flyback chronograph movement. Those are manufacturer specifications, not evidence of independent timing, dive or wrist testing.
Which green Bathyscaphe Chronographe Flyback is this?
The exact reference matters because Blancpain offers the green-dial model in different strap configurations. Reference 5200 0153 01S is the ceramic-bracelet version; the brand lists it with a folding clasp. Its official product page describes the dial as “Sunburst green.” Blancpain’s 5200 0153 01S listing
| Reference | Listed configuration | Clasp |
|---|---|---|
| 5200 0153 01S | Black ceramic bracelet | Folding clasp |
| 5200 0153 B52A | Sail-canvas strap; Blancpain describes it as interchangeable | Pin buckle |
| 5200 0153 NABA | NATO strap | Pin buckle |
The B52A and NABA are distinct references, not alternate descriptions of the 01S bracelet model. Blancpain’s B52A product page and official NABA search listing establish the strap differences.
Case, dial and bezel: what Blancpain specifies
For the 01S, Blancpain lists a black ceramic case measuring 43.60 mm in diameter and 15.25 mm thick, with 23.00 mm between the horns. The caseback is sapphire, and stated water resistance is 30 bar. These measurements describe the watch on the manufacturer’s specification sheet; they do not establish how it sits on a particular wrist.
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- 30M Water Resistant and 3 Year Limited Warranty
The green dial is paired with a unidirectional rotating bezel with a green ceramic insert and Liquidmetal hour markers. Blancpain’s technical document for the 5200-0153 family describes the bezel as satin-brushed black ceramic with the green insert and Liquidmetal markers. Blancpain 5200-0153 technical data
F385 movement and functions
Blancpain specifies an automatic F385 caliber with a 50-hour power reserve, 5 Hz frequency, 37 jewels, silicon balance spring and 322 components. The listed functions are a flyback chronograph, date and small seconds.
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- Silver-Tone Stainless Steel
- Anti-Reflective Sapphire Crystal
- 200 Meters Water Resistant and 5 Year Limited Warranty
Those figures and functions are manufacturer specifications; they are not independent measurements of timekeeping accuracy or reserve. The published material does not establish chronograph performance under use or legibility in particular lighting and diving conditions.
Price and availability
Blancpain’s US product page displayed $31,700 for reference 5200 0153 01S when retrieved in 2026. The brand cautions that price may vary with bracelet fastening, so treat that figure as a listed US price rather than a guaranteed transaction price. The page directs customers to inquire with Blancpain or a point of sale about availability. Check Blancpain’s US 01S listing for current pricing and stock.
Rank #3
- 1/5 Second Chronograph Measures up to 60 Minutes, 12/24 Hour Time, Date
- Silver-Tone Stainless Steel
- Mineral Crystal
- 100M Water Resistant and 5 Year Limited Warranty
What the published specifications can—and cannot—tell you
The specifications establish the stated materials, dimensions, movement details, functions and water-resistance rating for the listed model. They cannot by themselves answer whether the watch will feel comfortable on your wrist, how clearly its dial reads in real conditions, how accurately it keeps time, or whether a particular example is suitable for your intended dive use. No physical-watch, wrist, timing or dive evaluation is represented here.
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- Silver-Tone Stainless Steel
- Sapphire Crystal
- 200 Meters Water Resistant and 5 Year Limited Warranty
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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.




