A fake Portofino Small Seconds 37 is a replica of IWC's 37 mm Portofino dress watch, built around a small sub-dial at six o'clock. Quality varies widely between sellers, so the details that decide whether a copy looks convincing are case thickness, dial printing, hand finishing, and the movement inside.
What the name actually refers to
IWC's Portofino family includes 37 mm automatics with a central seconds hand and other references with a sub-dial. Sellers use the phrase Portofino Small Seconds 37 loosely, so start by confirming what the photos show. If the listing says small seconds and the picture shows a central sweeping hand, the description and the watch do not match, which is an early sign of a careless seller.
Genuine Portofino cases sit in the 37 mm range with a slim profile, which is the hardest part for a replica to copy. A 37 mm watch that wears like a 40 mm brick defeats the purpose of a dress watch.
Case and proportions
- Diameter: ask for a caliper photo. It should read close to 37 mm across the case, not the bezel.
- Thickness: replicas often run 0.5 to 1.5 mm thicker than the original. On a slim dress watch, that difference shows at the cuff.
- Lugs: check that the lugs curve downward and that the lug width matches the strap, usually 18 mm on this size.
- Crown: a signed crown that sits flush and turns without grit matters more than the logo engraving.
- Case finish: look for even brushing on the flanks and clean polishing on the bezel, with no soft edges.
Dial and hands
The dial is where most first copy watches fall apart under a macro lens. Ask for close-up photos in daylight, not studio renders.
- Printing: the brand text and minute track should be crisp under magnification, with no bleeding or gray edges.
- Markers: applied indices should sit level, with consistent height and no glue visible at the base.
- Sub-dial: the small seconds track should show fine concentric rings, and the sub-dial hand should reach toward the track without touching it.
- Hands: leaf or baton hands should be flat, evenly finished, and long enough to reach the minute track.
- Alignment: at rest, the small seconds hand should sit cleanly at 12 when the watch is reset.
The movement decides the price
Most replica Portofino Small Seconds 37 listings fall into three groups. A quartz version ticks once per second and is easy to spot. A budget automatic with a small-seconds module can stutter or jump when the sub-dial hand moves. A better automatic, often based on a clone of a Swiss small-seconds caliber, sweeps smoothly, hacks, and winds without roughness.
Request a short video with the watch running and the crown pulled out. Watch the sub-dial hand for a full minute. Smooth travel and a clean reset tell you more than any spec sheet.
Strap, buckle, and caseback
Strap quality is an easy upgrade, so do not reject a watch over it. Do check the buckle engraving depth and the stitching density, since both hint at the overall finish level. On the caseback, look at engraving sharpness, the reference text, and whether a sapphire window shows a decorated movement or a plain plate with stickers.
Typical price bands
- Entry level, under about $150: quartz or basic automatic, thicker case, flat dial print.
- Mid range, roughly $200 to $450: automatic movement, better dial, closer case profile.
- Upper range, $500 and up: clone Swiss small-seconds movement, sharper finishing, better strap and buckle.
Treat these as ranges sellers quote, not guarantees. Ask what the price actually buys: movement name, case thickness, and strap material.
Red flags to walk away from
- Only stock or manufacturer images, with no timestamped photos of the actual watch.
- No macro shot of the sub-dial, the printing, or the caseback.
- Claims of Swiss made or 1:1 perfection without a movement photo.
- Pressure to pay outside a platform with buyer protection.
- No return window and no clear answer about servicing.
A quick inspection checklist
- Confirm the layout: sub-dial at six or central seconds.
- Measure the case and thickness with photos.
- Inspect dial print, marker seating, and hand length up close.
- Request a running video of at least one minute.
- Check the strap, buckle, and caseback engraving.
- Confirm the return policy in writing before paying.
Living with a 37 mm replica
A 37 mm Portofino wears well on wrists from about 6 to 7 inches and slips under a shirt cuff, which is the point of the design. Keep it away from water unless the seller states a tested rating, and budget for a service or a strap swap within the first year. Buy the seller as much as the watch: clear photos, honest answers about the movement, and a return policy are worth more than a long list of claimed features.