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Comparison Luxury dive watches

Blancpain Fifty Fathoms Bathyscaphe Flyback vs Longines HydroConquest: which one should you buy?

Quick answer

Buy the Blancpain Fifty Fathoms Bathyscaphe Flyback if you want a refined diver chronograph. Buy the Longines HydroConquest instead if you want Swiss diver under $2,500.

By Opulique Editorial Team Updated 1 min read

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Blancpain Fifty Fathoms Bathyscaphe Flyback
Buy

Blancpain Fifty Fathoms Bathyscaphe Flyback

Best for Diver chronograph

Typically $18,000–$21,000

Check Price on Amazon Paid link
Longines HydroConquest
Buy

Longines HydroConquest

Best for Value diver

Typically $1,800–$2,300

Check Price on Amazon Paid link

Quick comparison

FeatureBlancpain Fifty Fathoms Bathyscaphe FlybackLongines HydroConquest
VerdictBuyBuy
Typical price$18,000–$21,000$1,800–$2,300
Best forDiver chronographValue diver
Key featureCeramic flyback chronograph diverCeramic bezel diver with silicon spring
Case43.6 mm ceramic41 mm steel
MovementBlancpain F385Longines L888
Water resistance300 m300 m
Power reserve50 hours72 hours
Where to buyCheck Price Paid linkCheck Price Paid link

Main differences

Case

Blancpain Fifty Fathoms Bathyscaphe Flyback: 43.6 mm ceramic; Longines HydroConquest: 41 mm steel.

Movement

Blancpain Fifty Fathoms Bathyscaphe Flyback: Blancpain F385; Longines HydroConquest: Longines L888.

Water resistance

Blancpain Fifty Fathoms Bathyscaphe Flyback: 300 m; Longines HydroConquest: 300 m.

Power reserve

Blancpain Fifty Fathoms Bathyscaphe Flyback: 50 hours; Longines HydroConquest: 72 hours.

Why buy it

Blancpain Fifty Fathoms Bathyscaphe Flyback: ceramic flyback chronograph diver; Longines HydroConquest: ceramic bezel diver with silicon spring.

Made for

Blancpain Fifty Fathoms Bathyscaphe Flyback: diver chronograph; Longines HydroConquest: value diver.

Usual price

Blancpain Fifty Fathoms Bathyscaphe Flyback: $18,000–$21,000; Longines HydroConquest: $1,800–$2,300.

Which should you choose?

Choose the Blancpain Fifty Fathoms Bathyscaphe Flyback if you

  • you want a refined diver chronograph
  • value flyback
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Choose the Longines HydroConquest if you

  • you want Swiss diver under $2,500
  • value great value
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If neither feels right

Neither is the only answer. See every piece we would buy (and the ones we would skip) in our list of the best luxury dive watches.

Not sure about either? Consider these

Rolex Submariner Date 126610LN

Rolex · Luxury dive watches

Rolex Submariner Date 126610LN

Buy it if you want the most recognized luxury watch and its strong resale.

Verdict
Buy
Best for
The dive icon
Typical price
$10,700–$15,000

Pros

  • Holds value
  • Superb build

Cons

  • Hard to buy at list
Check Price on Amazon Paid linkRead our review
Rolex Submariner 124060

Rolex · Luxury dive watches

Rolex Submariner 124060

Buy it if you want the cleanest Submariner.

Verdict
Buy
Best for
Purist Sub
Typical price
$9,600–$13,000

Pros

  • Clean dial
  • Holds value

Cons

  • Hard to buy
Check Price on Amazon Paid linkRead our review

Frequently asked questions

Blancpain Fifty Fathoms Bathyscaphe Flyback or Longines HydroConquest: which should I buy?

Buy the Blancpain Fifty Fathoms Bathyscaphe Flyback if you want a refined diver chronograph. Buy the Longines HydroConquest instead if you want Swiss diver under $2,500.

Is the price difference worth it?

The Blancpain Fifty Fathoms Bathyscaphe Flyback usually costs $18,000–$21,000 and the Longines HydroConquest $1,800–$2,300. Pay more only if the differences above matter to you.

Opulique Editorial Team

Part of the Opulique research team. We compare specifications, documentation and real-world trade-offs so you can decide faster.

How we research products Editorial policy

Blancpain Fifty Fathoms Bathyscaphe Flyback or Longines HydroConquest: the full reasoning

Blancpain Fifty Fathoms Bathyscaphe Flyback or Longines HydroConquest? Both are strong luxury dive watches, which is exactly why the choice is hard. The short version first: buy the Blancpain Fifty Fathoms Bathyscaphe Flyback if you want a refined diver chronograph, and buy the Longines HydroConquest if you want Swiss diver under $2,500. The rest of this page explains why, with usual US prices.

Where they differ

The Blancpain Fifty Fathoms Bathyscaphe Flyback wins on ceramic flyback chronograph diver. The Longines HydroConquest answers with ceramic bezel diver with silicon spring. Case: 43.6 mm ceramic on the Blancpain Fifty Fathoms Bathyscaphe Flyback, 41 mm steel on the Longines HydroConquest. Movement: Blancpain F385 on the Blancpain Fifty Fathoms Bathyscaphe Flyback, Longines L888 on the Longines HydroConquest. Water resistance: 300 m on the Blancpain Fifty Fathoms Bathyscaphe Flyback, 300 m on the Longines HydroConquest. Power reserve: 50 hours on the Blancpain Fifty Fathoms Bathyscaphe Flyback, 72 hours on the Longines HydroConquest.

Reasons to buy the Blancpain Fifty Fathoms Bathyscaphe Flyback

Flyback, Superb. What to accept: pricey. Usual price: $18,000–$21,000. Our verdict: buy. Read the full Blancpain Fifty Fathoms Bathyscaphe Flyback review.

Reasons to buy the Longines HydroConquest

Great value, Accurate. What to accept: less prestige. Usual price: $1,800–$2,300. Our verdict: buy. Read the full Longines HydroConquest review.

Neither one?

Our list of the best luxury dive watches has every other piece with its own call. Size: 39 to 42 mm wears well on most wrists; check lug-to-lug length, which matters more than diameter.

Also consider the Rolex Submariner Date 126610LN ($10,700–$15,000): 41 mm Oystersteel diver with Cerachrom bezel and calibre 3235. Buy it if you want the most recognized luxury watch and its strong resale.

Also consider the Rolex Submariner 124060 ($9,600–$13,000): no-date Submariner with symmetrical dial. Buy it if you want the cleanest Submariner.

Buyer tip

Buy luxury watches from authorized dealers or the brand for the full warranty; grey-market and pre-owned sellers can save 10–30% but check their warranty.

Buying in Europe: authorized-dealer prices for Swiss watches are set per country and include VAT; a watch bought in Switzerland or the EU carries the same international warranty as one bought in the US. Grey-market and pre-owned prices are often quoted in euros or Swiss francs.

Luxury prices move in a different rhythm from everyday shopping. The great houses (Chanel, Hermès, Louis Vuitton, Dior, Rolex) raise prices once or twice a year, often in January and in spring, and almost never discount their icons. Seasonal pieces, colors and many shoes, coats and knitwear drop 30–50% in the end-of-season sales in January and from late June. Watches from brands such as Omega, TAG Heuer, Longines and Breitling, and most fragrance, see the best prices around Prime Day and Black Friday. Judge any deal against the usual price we show.