The authenticity of the watch has been checked and certified by Sebastian, who is one of Sweden's leading watch experts.

This vintage Franck Muller Casablanca Ref 5850 watch blends unique Art Deco style with Swiss precision. Featuring a 32mm stainless steel case, automatic movement, and a striking black exploded dial, it's presented in very good condition with its box and extra links. This distinctive timepiece adds character to professional attire or sophisticated evening wear, making a statement with its bold numerals and classic tonneau shape, perfect for elevating any ensemble with a touch of vintage luxury.

Q: Will the 32mm size suit my wrist, and is it unisex?
A: The curved tonneau case tends to wear larger than a round 32mm. It suits many small to medium wrists and is widely worn unisex—fit depends on personal style and wrist shape. If you’re unsure, share your wrist measurement and we’ll advise.

Q: What bracelet length does it come with, and can it be resized?
A: The stainless steel bracelet fits up to approximately 20cm and includes three extra links. We can assist with sizing before shipment, and links can be added or removed to fine‑tune the fit.

Q: Can I swap the bracelet for a leather strap?
A: Yes—many Ref 5850 watches are paired with leather straps. Use a strap specifically made for the 5850’s curved case profile and correct hardware (curved spring bars). A professional watchmaker can help ensure proper fit and alignment.

Q: What is the Franck Muller Casablanca 32mm Ref 5850?
A: It’s a vintage, Swiss‑made automatic wristwatch from Franck Muller’s Casablanca line, known for its curved tonneau (Cintrée Curvex) case and bold Art Deco numerals. This example features a 32mm stainless steel case, black dial, and a stainless steel bracelet.

Q: What movement does it use and what power reserve should I expect?
A: The Casablanca Ref 5850 typically houses a Swiss automatic movement (many are based on high‑grade ETA calibres such as the 2892‑A2). Power reserve is commonly around 40–42 hours, though exact calibre can vary by production. We can confirm the movement in this specific watch on request.

Q: Is it water‑resistant and can I swim with it?
A: Water resistance on vintage watches is not guaranteed. Treat this watch as splash‑resistant at best and avoid swimming, showering, or submersion unless it has been freshly serviced, re‑sealed and pressure‑tested by an authorised watchmaker. Always ensure the crown is fully pushed in before any exposure to moisture.

Q: How do I wind and set the time?
A: If the watch has stopped, wind the crown (in the neutral position) clockwise about 20–40 turns to start it. Pull the crown out to set the time, ideally moving the hands forward to your desired time, then push the crown back in securely. As this is a time‑only model, there’s no date setting to worry about.

Q: Will the 32mm size suit my wrist, and is it unisex?
A: The curved tonneau case tends to wear larger than a round 32mm. It suits many small to medium wrists and is widely worn unisex—fit depends on personal style and wrist shape. If you’re unsure, share your wrist measurement and we’ll advise.

Q: What bracelet length does it come with, and can it be resized?
A: The stainless steel bracelet fits up to approximately 20cm and includes three extra links. We can assist with sizing before shipment, and links can be added or removed to fine‑tune the fit.

Q: Can I swap the bracelet for a leather strap?
A: Yes—many Ref 5850 watches are paired with leather straps. Use a strap specifically made for the 5850’s curved case profile and correct hardware (curved spring bars). A professional watchmaker can help ensure proper fit and alignment.

Q: What crystal does the Casablanca 5850 use?
A: Many Casablanca references feature a sapphire crystal for scratch resistance, though specifics can vary. We’re happy to confirm the crystal type on this particular piece upon request.

Q: What accuracy and service interval should I expect?
A: A well‑maintained vintage automatic should keep good time, with small daily variation typical of its era (often within roughly ±10–20 seconds/day). A routine service every 3–5 years is recommended, or sooner if timekeeping or water‑resistance issues arise. Keep the watch away from strong magnets and have it checked if you notice condensation or running fast/slow.

Q: What is included and how do you guarantee authenticity?
A: This watch is delivered with its box, outer box, hang tag, and three extra links. A Retro Tale thoroughly authenticates every item and provides a 12‑month mechanical guarantee. EU buyers benefit from 0% custom fees; shipping is free, fast, and fully insured via DHL, with a 14‑day return policy.

Q: What is the Franck Muller Casablanca 32mm Ref 5850?
A: It’s a vintage, Swiss‑made automatic wristwatch from Franck Muller’s Casablanca line, known for its curved tonneau (Cintrée Curvex) case and bold Art Deco numerals. This example features a 32mm stainless steel case, black dial, and a stainless steel bracelet.

Q: What movement does it use and what power reserve should I expect?
A: The Casablanca Ref 5850 typically houses a Swiss automatic movement (many are based on high‑grade ETA calibres such as the 2892‑A2). Power reserve is commonly around 40–42 hours, though exact calibre can vary by production. We can confirm the movement in this specific watch on request.

Q: Is it water‑resistant and can I swim with it?
A: Water resistance on vintage watches is not guaranteed. Treat this watch as splash‑resistant at best and avoid swimming, showering, or submersion unless it has been freshly serviced, re‑sealed and pressure‑tested by an authorised watchmaker. Always ensure the crown is fully pushed in before any exposure to moisture.

Q: How do I wind and set the time?
A: If the watch has stopped, wind the crown (in the neutral position) clockwise about 20–40 turns to start it. Pull the crown out to set the time, ideally moving the hands forward to your desired time, then push the crown back in securely. As this is a time‑only model, there’s no date setting to worry about.

Q: Will the 32mm size suit my wrist, and is it unisex?
A: The curved tonneau case tends to wear larger than a round 32mm. It suits many small to medium wrists and is widely worn unisex—fit depends on personal style and wrist shape. If you’re unsure, share your wrist measurement and we’ll advise.

Q: What bracelet length does it come with, and can it be resized?
A: The stainless steel bracelet fits up to approximately 20cm and includes three extra links. We can assist with sizing before shipment, and links can be added or removed to fine‑tune the fit.

Q: Can I swap the bracelet for a leather strap?
A: Yes—many Ref 5850 watches are paired with leather straps. Use a strap specifically made for the 5850’s curved case profile and correct hardware (curved spring bars). A professional watchmaker can help ensure proper fit and alignment.

Q: What crystal does the Casablanca 5850 use?
A: Many Casablanca references feature a sapphire crystal for scratch resistance, though specifics can vary. We’re happy to confirm the crystal type on this particular piece upon request.

Q: What accuracy and service interval should I expect?
A: A well‑maintained vintage automatic should keep good time, with small daily variation typical of its era (often within roughly ±10–20 seconds/day). A routine service every 3–5 years is recommended, or sooner if timekeeping or water‑resistance issues arise. Keep the watch away from strong magnets and have it checked if you notice condensation or running fast/slow.

Q: What is included and how do you guarantee authenticity?
A: This watch is delivered with its box, outer box, hang tag, and three extra links. A Retro Tale thoroughly authenticates every item and provides a 12‑month mechanical guarantee. EU buyers benefit from 0% custom fees; shipping is free, fast, and fully insured via DHL, with a 14‑day return policy.

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