What Is the IWC IW371734?

The IW371734 sits in IWC's Portugieser Chronograph family, a line defined by a large, clean dial and slim bezel. The genuine watch uses a 41 mm stainless steel case and IWC's in-house 69355 automatic chronograph calibre with a column wheel and roughly 46 hours of power reserve. The blue dial carries applied Arabic numerals, leaf-shaped hands and two counters, one for elapsed minutes and one for running seconds.

Because the reference is popular and visually simple, it is one of the easier IWC models to copy well. It is also one of the easier ones to copy badly, since a plain dial leaves nowhere to hide sloppy printing.

What Should You Check on a Replica IW371734?

Case and Caseback

Measure the diameter and thickness first. A genuine Portugieser Chronograph wears thin for its size, and thick clones read as bulky on the wrist. Check the lug shape, the polished and brushed transitions, and whether the caseback engraving is crisp rather than shallow and blurred.

Dial and Subdials

Look at the subdial spacing: the two counters should sit directly above and below the center line, not pushed off to one side. Printed text should be sharp at the edges under magnification, and the applied numerals should throw a real shadow. A flat, sticker-like dial is the fastest giveaway of a low tier build.

Movement

Most mid and high tier replicas run a modified automatic chronograph movement, often based on a 7750 architecture, with a rotor decorated to resemble the IWC finish. Budget versions use quartz, which keeps time well but gives the chronograph pushers a different feel. Ask the seller which movement is fitted before you pay.

Replica IW371734 Quality Tiers

• Budget tier ($90 to $150): quartz movement, printed dial details, lighter case finishing.
• Mid tier ($180 to $280): automatic chronograph, sapphire crystal, solid bracelet or leather strap options.
• High tier ($300 to $500): closer case dimensions, better dial texture, decorated rotor, smoother pusher action.

How Do You Spot a Low-Grade Replica IW371734?

Check the chronograph reset. A healthy movement snaps both hands back to zero instantly, while a weak one drifts or sticks. Then look at the date window position and font, and at the crown guards, since these are commonly wrong on cheap builds. Finally, wind the watch and listen: a grinding rotor or a loose crown is a sign of poor assembly rather than a design flaw.

FAQ

How much does a replica IW371734 cost?

Expect roughly $90 to $150 for quartz, $180 to $280 for a standard automatic, and $300 to $500 for the top tier with better finishing.

Does a replica IW371734 have a working chronograph?

Automatic versions normally do, with start, stop and reset through the two pushers. Some quartz versions use decorative subdials that do not count real elapsed time.

Is a replica IW371734 water resistant?

Most are rated for splashes only, and that rating depends on gasket quality and caseback sealing. Treat any replica as not suitable for swimming unless a seller states otherwise in writing.

Which strap suits the replica IW371734 best?

A blue dial pairs with black or dark blue alligator-grain leather, and a steel bracelet version changes the watch from dress to everyday wear. Strap quality affects the look more than most buyers expect.