A fake Portofino Chrono is a replica of the IWC Portofino Chronograph, a 42mm dress watch with a Valjoux-based automatic chronograph movement, subdials at 12 and 6, and a day-date window at 3. The term covers a wide range: a $70 quartz copy and a $400 super clone share the same silhouette but almost nothing else. What separates them is case thickness, dial printing, and the movement behind the caseback.
What counts as a fake Portofino Chrono?
Any Portofino Chronograph not built by IWC falls into this group. Replica makers sort them into tiers by movement and finish, not by the logo printed on the dial.
- Entry tier: quartz movement, mineral glass, printed dial, plated case
- Mid tier: Asian 7750 automatic, sapphire crystal, closer case profile
- Super clone tier: Swiss ETA 7750 or Sellita SW500 base, correct thickness, engraved rotor and bridges
Most copies follow the IW3910 reference family: stainless steel, 42mm wide, about 13.5mm thick, 20mm lugs, and a leather strap.
How do you spot a low-grade Portofino Chrono fake?
Case size and thickness
The genuine watch measures 42mm wide and about 13.5mm thick. A quartz copy often sits at 10mm or bulges to 15mm because the movement and spacer do not match the case. Measure with calipers when you can.
Dial layout and printing
- Subdial positions: chronograph minutes at 12, running seconds at 9, chronograph hours at 6
- Day-date at 3, with the day above the date
- Applied markers with sharp edges and even lume fill
- Print that stays crisp under a loupe. Cheap copies show flat, thick text
Pushers, crown, and caseback
Pushers on the real watch have a firm, short travel. Loose pushers with a mushy click point to a budget build. Caseback engraving is another tell: shallow laser etching versus deep stamping.
Strap and buckle
Genuine Portofino Chronographs ship on alligator leather with a signed pin buckle or deployant clasp. Replicas often use embossed cowhide and a stamped buckle that feels light in the hand.
What separates a super clone from a budget fake?
Super clones chase the parts you can see and feel. That means the right case thickness, a movement that fills the case without a spacer, and a dial with clean pad printing or hand-set markers.
- Correct 42mm diameter and 13.5mm profile
- Sapphire crystal with a correct dome and anti-reflective coating
- Real 7750 architecture, so the subdial positions match the genuine
- Signed rotor with decorated bridges, perlage or Geneva stripes
- 20mm lugs that take standard aftermarket straps
Budget fakes skip these. You get a quartz subdial that ticks once per second and a date window that sits a millimeter off center.
Which movement sits inside a fake Portofino Chrono?
Three movements show up in most replicas. The one you get decides how the watch feels and how long it lasts.
- Quartz: cheap, accurate, no sweep. The 6 o'clock subdial often runs as a 24-hour hand instead of a chronograph hour counter.
- Asian 7750 (Shanghai or Hangzhou): automatic, 28,800 vph, real chronograph function. The rotor can be noisy on cheaper builds.
- Swiss ETA 7750 or Sellita SW500: the same base IWC uses for caliber 79320. Smooth pushers and serviceable parts.
IWC's 79320 is a modified Valjoux 7750, so a replica with a well-finished 7750 sits closer to the genuine in feel than any quartz copy can.
What should a fake Portofino Chrono cost?
Price tracks the movement, not the label on the box.
- Quartz copies: under $100
- Asian 7750 builds: about $180 to $300
- Swiss movement super clones: $350 to $600
Anything above that band often means a seller is charging for a name, not for parts. Ask for movement photos before you pay.
FAQ
Is a fake Portofino Chrono waterproof?
Most are rated for splashes only. Gaskets on replicas vary by batch, so keep them away from showers, pools, and salt water unless a watchmaker has pressure tested yours.
Can a watchmaker tell a replica Portofino Chrono from the real thing?
Yes. Open the caseback and the movement finish, rotor engraving, and balance assembly give it away. From the outside, dial printing under a loupe and case thickness are the fastest tells.
Do the chronograph pushers work on a replica?
On any automatic 7750 build, yes. Start, stop, and reset all run through the pushers. On quartz copies, the pushers may move a fake subdial hand and nothing more.
What is the correct case size for a Portofino Chronograph?
42mm wide, about 13.5mm thick, 20mm lug width. Older references run smaller, so match the replica to the reference you are copying.
Does the replica use a sapphire crystal?
Most mid-tier and super clone versions do. Budget copies use mineral glass, which scratches and shows a dull reflection at an angle.
Buying checklist
- Ask for the movement name and a photo of the caseback
- Confirm case diameter and thickness in writing
- Check that the subdial layout matches the genuine reference
- Confirm sapphire crystal and 20mm lugs
- Ask whether the watch has been pressure tested
- Read the return policy before paying