The short answer
A genuine Patek Philippe Nautilus 5711/1G in 18k white gold weighs roughly 185 to 195 grams on a full bracelet. Replica 5711/1G builds fall into two clusters: steel and plated versions at about 95 to 145 grams, and tungsten-weighted versions at about 160 to 190 grams. Anything advertised as a white gold Nautilus that lands under 150 grams is not built to survive a scale.
patek philippe nautilus 5711/1g replica review
Why the /1G is so much heavier than the /1A
The 5711/1A is stainless steel and comes in near 130 grams. The 5711/1G uses the same 40 mm case and the same bracelet architecture in 18k white gold. Gold is dense, about 15.5 g/cm3 against roughly 7.9 for steel. Same volume, far more mass. That is the whole reason weight is the first thing I check on a white gold Nautilus. Finish can be copied closely. Density cannot.
How the fake builds land on the scale
Plated brass or zinc alloy: 90 to 115 g
This is the budget tier. The case looks right in photos and feels hollow in the hand. Bracelet links rattle, the clasp is stamped thin, and the whole watch has a toy-like lightness. Nobody mistakes one of these for gold once it is on the wrist.
white gold patek nautilus 5711/1g clone
316L stainless steel: 125 to 145 g
The mid tier. Good dimensions and decent brushing, but it reads as steel the moment you pick it up. A steel Nautilus fake weighing 138 grams is a normal steel watch, not a gold one.
Fake Patek Nautilus 5711/1G: Legal Facts and Checks
Tungsten case with a steel bracelet: 150 to 170 g
A common shortcut. The head is heavy, the bracelet is not, so the total climbs into a range that sounds plausible. This is the build that fools a number and fails a hand test.
Full tungsten alloy case and bracelet: 165 to 190 g
The closest mass match outside real gold. Tungsten alloy sits near 18 g/cm3, so a maker can hit genuine territory without buying gold. Color and warmth are the weak points, not the grams.
Solid 18k gold replica cases: 180 to 195 g
Rare and expensive, since the price tracks the metal. Weight will be right. Everything else still has to be judged on its own.
Weighing it the right way
- Use a digital scale that reads to 0.1 g, not a kitchen scale with a 2 g tolerance. A 3 g gap means nothing on a coarse scale.
- Count the links first. Each gold link is roughly 2 to 3 grams, so a genuine watch sized to a 6.5 inch wrist can sit near 175 grams and still be correct. Always compare at the same link count.
- Weigh the head alone with the bracelet off. This isolates the case and exposes a tungsten head bolted to a steel bracelet.
- Weigh the bracelet alone. On the real 5711/1G, the bracelet carries a little more than half the total mass. If the head is 60 percent of the weight, something is off.
The balance test
Hold the watch by the clasp and let the bracelet hang free. The genuine piece hangs with mass spread along the whole assembly, so it settles instead of swinging. A tungsten head on a steel bracelet flips head-down almost immediately, because the center of gravity sits in the wrong place. I trust this test more than any single gram reading.
What weight does not prove
Tungsten gets you close on mass and does nothing for the rest. The metal takes plating rather than holding a gold color through the material, so edges and clasp contact points wear through to gray over time. Luster under direct light is flatter. Case thickness, crown profile, bracelet taper, date font, and movement decoration all still need eyes on them. A heavy fake is a heavy fake, not a good one.
Checklist before you trust a number
- Ask for total weight and link count in the same message.
- Ask for a photo of the watch on the scale, with the model number visible.
- Compare head weight, bracelet weight, and total, not just total.
- Expect 185 to 195 g for a full-length white gold genuine example.
- Treat any claim over 195 g with suspicion. That usually means a thick case, not more gold.
- Remember that 10 grams between two watches can be one link and a sizing pin.