Buy the movement, not the photos. On a replica grand complication 720.025, what sits behind the dial decides whether you get a watch you can wear for years or a paperweight with a busy face. Before you pay, ask the seller three questions: which movement family is inside, can they send a running video with the chronograph started and stopped, and what is the exact case thickness. If any of those answers is vague, walk away. A build worth owning runs an automatic base with a stacked complication module, carries the same lug width and strap fitment as the original, and matches the published case dimensions within a millimeter or so. A case that is noticeably thinner than the original while showing a full calendar and chronograph layout is a decorative dial over a simple three-hand movement.
Why this reference is hard to build well
Grand complication means three or more high complications in one case. On this type of reference that usually involves a perpetual calendar, a chronograph, and often a minute repeater or tourbillon on top. Every added function needs space, and space is what a replica case does not have. The result is a crowded dial with subdials, apertures, and hands that must line up to the millimeter. That is also why the dial is the fastest way to judge a build: misaligned apertures, heavy date printing, and hands that sit too high above the dial are the visible symptoms of a module that does not fit.
What to check before you pay
- Movement disclosure. Ask for the base caliber and the module. Sellers who name both are working with something real. Sellers who only say "Swiss movement" or "clone movement" are hiding a third-tier automatic.
- Function proof on video. A dated clip, the chronograph running, the calendar advancing, and the crown pulled through every position. Stills do not count.
- Case and crystal. Look at lug profile, crown guards, and bevels under direct light, not studio glow. Sapphire should show no haze at the edge.
- Dial execution. Check aperture cutouts for burrs, printed text for weight and spacing, and applied markers for height consistency.
- Strap and clasp. An alligator-pattern strap with a stamped clasp is the cheapest corner cut in this category.
- Service path. Complication modules need a watchmaker who has seen one before. Confirm who will service it and how long parts take.
Parameter bands to target
- Case diameter: within 0.5 mm of the published original. A 2 mm spread is visible on the wrist and throws off lug proportions.
- Thickness: match the original within 1 to 2 mm. Thin builds in this category almost always hide missing functions.
- Lug width: exact original specification, so aftermarket straps fit without adapters.
- Movement: automatic at 28,800 vph where the original is automatic, hand-wound where it is hand-wound. A rotor on a reference that should not have one is a tell.
- Power reserve: 38 to 48 hours is realistic for a stacked module. Claims far above that deserve proof.
- Water resistance: treat as splash resistant at best. Do not swim with any replica complication.
Common pitfalls
- Calendar apertures that are printed on and never change. Test the date advance before you accept delivery.
- Thick polished cases that photograph well and feel hollow in hand.
- Seller photos shot at an angle that hides subdial spacing and hand height. Request a flat, straight-on shot.
- No spare parts and no service contact. A complication replica with no service path has a short life.
- Ignoring the legal side. Counterfeit watches cannot be legally imported into the United States and shipments can be seized and destroyed, with no refund from the seller.
FAQ
Will a replica 720.025 work like the original?
No. A stacked module can run the same functions, but not to the same tolerances, hand finishing, or long-term reliability. Expect a wearable watch, not an investment.
How much should I pay?
There is no standard price because module quality varies so much. Compare the movement spec rather than the number, and treat any offer far below the rest of the market as a sign that functions are printed rather than working.
Does it hold value?
No. Replicas have no collector resale market. Buy it to wear it, and budget for servicing like any mechanical watch.
What is the fastest red flag?
Subdial spacing that does not match the original, combined with a refusal to send a running video. Either one alone is enough to move on.