The Patek Philippe Twenty-4 ref 4910 is a quartz watch for women. It measures 25.1 mm wide and 30 mm long. Patek launched it in 1999. The watch has no seconds hand and no date. Most versions have a diamond bezel. Replica versions exist in many grades. The main differences are movement, case back, dial printing, and bracelet construction.

What the Ref 4910 Is

Patek Philippe introduced the Twenty-4 in 1999. Ref 4910 is the original model. The case is steel, rose gold, white gold, or yellow gold. The case shape is a rounded rectangle. The bezel holds 36 diamonds on most references. The dial has diamond hour markers. The movement is a Patek Philippe Caliber E15 quartz. The case back is solid. The bracelet integrates into the case. Water resistance is 30 meters.

Replica Grades

Replica Twenty-4 4910 watches fall into three groups. Low-grade replicas cost $50 to $200. They use a 30 mm case. The movement is a cheap quartz or automatic. The dial font is wrong. The diamonds are glued cubic zirconia. Mid-grade replicas cost $200 to $500. They use a 25 mm case. The movement is a Ronda quartz. The diamonds are laser-cut stones. The case back engraving is shallow. Super clone replicas cost $500 to $1,200. They use a 25.1 mm case. The movement is a Swiss quartz or a decorated Chinese quartz. The dial printing matches the original. The diamonds are optional and can be real.

Visible Tells

  • Case back: Genuine has deep engraving. It reads "Patek Philippe" and "GENEVE" and the reference number. Replicas have shallow lines. The font is wide or uneven.
  • Crown: Genuine has the Calatrava cross. The edges are sharp. Replicas have soft edges.
  • Dial: Genuine has crisp "Patek Philippe" and "GENEVE" text. The letters are thin. Replicas have thick letters. The spacing is wrong.
  • Diamonds: Genuine uses Wesselton diamonds. They are bright and white. Replicas use cubic zirconia. They look gray or cloudy.
  • Bracelet: Genuine has polished screws on the sides. Replicas often use pins. The screws on replicas are not flush.
  • Weight: Genuine steel weighs about 80 grams. Replicas weigh 60 to 70 grams. Gold replicas weigh more but feel hollow.
  • Movement: Genuine is quartz. It ticks one time per second. Many replicas also tick one time per second. So the tick is not a tell. The movement finish is a tell. Genuine has a metal cover. Replicas have plastic.

Specs to Check

  1. Case width: 25.1 mm.
  2. Case length: 30 mm.
  3. Case thickness: 6.7 mm.
  4. Movement: Patek Philippe Caliber E15 quartz. 6 jewels.
  5. Water resistance: 30 meters.
  6. Bezel: 36 diamonds. Total weight about 0.45 carats.
  7. Dial: diamond hour markers. No date. No seconds hand.
  8. Bracelet: integrated. Steel or gold. Hidden clasp.

Price Ranges

Genuine ref 4910 prices: steel models sell for $8,000 to $14,000. Gold models sell for $14,000 to $25,000. Diamond bezel adds $2,000 to $5,000. Replica prices: low grade $50 to $200. Mid grade $200 to $500. Super clone $500 to $1,200. The price does not guarantee quality. A $300 replica can have a better dial than a $600 replica. Check the specs and photos.

What to Ask a Seller

Ask for the case width in millimeters. Ask for the movement type. Ask for the case back photo. Ask for the bracelet screw photo. Ask for the weight in grams. Ask for the diamond type. A seller who cannot answer these questions is a risk. A seller who sends stock photos is a risk.