Short answer
A replica Saxonia manual is a copy of the A. Lange & Söhne Saxonia Thin. That is the hand-wound model in the Saxonia line. The genuine watch comes in 37 mm and 40 mm cases. The 37 mm version measures 5.9 mm thick and runs calibre L093.1 with a 72-hour power reserve.
Replica versions sell for about $150 to $600. Most use an Asian hand-wound movement. None use a copy of the Lange calibre. Case thickness, dial print, and movement finish are the three areas where a copy differs from the original.
What the genuine Saxonia Thin is
Lange lists the Saxonia Thin 37 mm at 5.9 mm thick. The movement is 2.9 mm tall, beats at 21,600 vibrations per hour, and holds 72 hours of run time. The dial is solid silver with applied gold markers. The hands are blued steel on some references. The balance cock carries hand engraving done at the factory in Glashütte.
Which movements the copies use
Almost all replica Saxonia manual watches run a Chinese copy of the Unitas 6497 or 6498. The Seagull ST36 is the common base. Specs for that family:
- Diameter: 36.6 mm, or 16.5 lignes
- Height: about 4.5 mm
- Rate: 21,600 vibrations per hour
- Power reserve: about 38 to 45 hours on a full wind
- Finish: Geneva stripes and blued screws applied by machine
That 4.5 mm movement height sets a hard limit on the case. A 6497-based watch cannot sit at 5.9 mm thick once you add a caseback and crystal. Replica Saxonia cases measure about 8 mm to 9.5 mm thick. This is the easiest check to run with a caliper.
Details to compare side by side
- Case thickness: genuine 5.9 mm, copies 8 mm and up
- Case diameter: copies often ship at 38 mm or 40 mm, not 37 mm
- Dial: printed minute track on copies, applied markers with softer edges
- Hands: painted blue on low tiers, heat-blued on higher tiers
- Movement: engraved balance cock on copies is stamped, not cut by hand
- Lug width: 19 mm on the 37 mm genuine, 20 mm on many copies
- Caseback: sapphire on both, but copy engraving is shallower
Price tiers
Entry copies sit near $150 and use a plain ST36 with no decoration. Mid tiers run $250 to $400 and add striped plates, a signed rotor-free bridge, and a sapphire back. The top Chinese tiers reach $500 to $600 and focus on dial print and hand finishing. No tier delivers a 72-hour reserve or a 2.9 mm movement.
Legal status in the US
Counterfeit watches are prohibited goods at US borders. CBP can seize a shipment and destroy it. Trafficking in counterfeit goods is a federal crime under 18 U.S.C. § 2320, with penalties that include prison time for repeat offenses. A copy sold as a Lange is a counterfeit, not a homage.
Service and ownership
Lange will not service a replica. A watchmaker who handles Chinese hand-wound movements can clean and regulate an ST36 for about $60 to $120. Parts are cheap and swaps are common. Resale value is near zero.
What buyers should verify before paying
- Ask for a caliper photo of the case thickness.
- Ask for a photo of the movement with the caseback off.
- Confirm the movement rate with a timegrapher shot.
- Confirm the power reserve by timing a full wind.
- Check the return policy in writing.