The fake Fifty Fathoms 5015 is a replica of the Blancpain Fifty Fathoms Automatique ref. 5015, a 45 mm Swiss dive watch with a sapphire bezel insert and an in-house caliber 1315. Copies sell from about $90 for quartz models to $600 for builds with a Swiss ETA 2824-2 inside. The tier you choose decides how the watch looks on the wrist, how it keeps time, and what happens when it meets water.
The original 5015 specs that matter
Every replica gets judged against the real number set. Know the targets before you compare listings.
- Case: 45 mm across, about 15.5 mm thick, 23 mm lugs
- Materials: stainless steel or titanium, sapphire caseback
- Bezel: unidirectional, sapphire insert with lume at 12 o'clock
- Crystal: domed sapphire, anti-reflective coating on the inside
- Movement: caliber 1315 automatic, three barrels, 120-hour power reserve
- Water resistance: 300 m
Replica tiers for the Fifty Fathoms 5015
Wholesale catalogs split these watches into three price bands. Movement and bezel insert drive most of the cost difference.
Budget tier (under $120)
Quartz or a low-grade automatic. The case often measures 43 mm instead of 45 mm, the bezel insert is printed glass or aluminum, and the crystal is mineral. Lume dies within the hour.
Mid tier ($150 to $300)
Miyota 9015 or a Chinese 2824 clone, 316L steel case, sapphire crystal, and a sapphire or ceramic bezel insert. This band is the first that feels like a dive watch. Caseback engraving stays shallow, and the strap is generic rubber.
Top tier ($350 to $600)
Swiss ETA 2824-2 or 2892 with decorated bridges, drilled lugs, a true 45 mm case, and AR-coated domed sapphire. Some sellers ship a sail-canvas strap that matches the original weave. Bezel action tells the story here: 120 crisp clicks, no back play, no rattle.
What should you inspect before paying?
Ask for photos with a caliper and a loupe shot of the dial. Seven checks catch most problems.
- Case width. Confirm 45 mm, not 43 mm. A small case is the fastest tell next to a real 5015.
- Bezel insert. Sapphire holds color. Printed glass chips and fades.
- Crystal reflection. Domed sapphire with inner AR shows almost no glare.
- Movement name. Get the exact caliber, not a vague "Swiss made movement."
- Dial print. Font weight and spacing on the brand text should match the original.
- Crown feel. Smooth winding, no wobble, no grit.
- Caseback. Serial engraving, rotor decoration, and text depth should all line up.
Which movement belongs in your copy?
Movement choice sets service cost and long-term reliability. Four options cover most of the market.
- Miyota 9015: 28,800 vph, thin, cheap to replace. Parts cost little and any modder can swap it.
- ETA 2824-2: Swiss, about 38 hours of reserve, and every watchmaker knows it. The safest pick for daily wear.
- Decorated 1315 clone: fake bridges and a rotor that copy the Blancpain layout. It looks correct through a sapphire back but runs on a generic base.
- Quartz: accurate and service-free, but the seconds hand ticks once per second. Watch people spot that from across a room.
How does a 45 mm diver wear?
A 45 mm case with 23 mm lugs needs a wrist of about 7 inches or more to sit right. On a 6.5-inch wrist the lugs hang past the edges and the watch reads bigger than it is. The 15.5 mm thickness also catches cuffs, so measure twice before you commit to the size.
Red flags in cheap listings
- Photos taken from one angle only, or stock images pulled from the brand site.
- "Waterproof 300 m" on an $80 listing. Seals are not tested at that price.
- No movement name anywhere in the text.
- A 43 mm case described as 45 mm.
- Seller cannot show a real photo of the caseback.
Water, sweat, and daily care
Treat any replica 5015 as splash resistant until a watchmaker tests it. Heat, soap, and chlorine attack cheap gaskets, and a failed seal ruins a movement in days. Rinse the case with fresh water after a swim, dry it, and have the seals greased once a year.
FAQ
Is a fake Fifty Fathoms 5015 waterproof?
Not in the way the number suggests. The 300 m stamp on the caseback means nothing unless the seals were tested. Assume splash resistance and pay for a pressure test if you plan to swim.
How much should a good copy cost?
Plan on $200 to $500 for a version that looks right at arm's length. Below $120 you buy a quartz watch with the correct name on the dial and a mineral crystal.
Does the replica match the 120-hour power reserve?
No. The real caliber 1315 uses three barrels to reach 120 hours. Replica movements give 38 to 42 hours, so the watch stops if you leave it off over a weekend.
Can a jeweler spot it?
Yes, with a loupe. Movement finish, rotor weight, and caseback engraving differ from the original up close. From a few feet away, a top-tier copy passes for the real thing.
Bottom line
Spend your budget on the movement and the case size, not on packaging. A fake Fifty Fathoms 5015 with a 45 mm case, a Swiss ETA 2824-2, and a sapphire bezel insert delivers the look and the function you want. Everything else is a detail you can upgrade later.