Jaeger-LeCoultre
Jaeger-LeCoultre Reverso Classic Monoface Origin Q3878520
The Jaeger-LeCoultre Reverso Classic Monoface Origin (reference Q3878520) is a stainless steel watch with a silver dial. It is water resistant to 30 m.
Specifications
Case
- Reference
- Q3878520
- Collection
- Reverso
- Case material
- Stainless steel
- Case shape
- Rectangular
- Crystal
- Sapphire
- Water resistance
- 30 m
Dial and bezel
- Dial
- Silver
Production
- Production
- Current
How it compares within the Reverso family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| Q3878520 (This watch) | — | Stainless steel | Silver | — | — |
| Q389257J | 29.9 mm | 18k pink gold | Black | 860 | 2023– |
| Q389848J | 29.9 mm | Stainless steel | Blue sunburst | 860 | 2023– |
| Q3918420 | 29.9 mm | Stainless steel | Silver / Blue (reverse) | 853/AA | 2022– |
| Q3988482 | 28.3 mm | Stainless steel | Blue sunburst / Silver (reverse) | 854A/2 | 2019– |
| Q713842J | 27.4 mm | — | Silver sunburst | 822/2 | 2023– |
| Q714845J | 29.9 mm | Stainless steel | Blue sunburst | 834 | 2025– |
| Q7168420 | 24.4 mm | Stainless steel | Silver | 822A/2 | 2024– |
| Q716848J | 24.4 mm | Stainless steel | Blue | 822A/2 | 2024– |
About the Reverso family
The Reverso was introduced in 1931 for polo players in British India, who wanted a watch that could survive a match. Its rectangular case slides and flips over in its cradle to hide the crystal, leaving a metal back that is often engraved.
The line includes the Reverso Tribute and Classic, the Duoface with a second dial on the back, the Reverso One for women and complicated models such as the Hybris Mechanica. Calibers include the hand-wound 822. Dealers identify the size and function from the reference, check that the flip mechanism is smooth and note any engraving on the back.
Quick answers
- How water resistant is the Jaeger-LeCoultre Reverso Classic Monoface Origin Q3878520?
- It is water resistant to 30 metres.
- Is the Jaeger-LeCoultre Reverso Classic Monoface Origin Q3878520 still in production?
- Yes, it is a current reference.
- What is the Jaeger-LeCoultre Reverso Classic Monoface Origin Q3878520 made of?
- The case is stainless steel.
Catalog facts checked September 2026.