Rolex Oyster Perpetual 25mm Ref 67180 1990 Watch

Q: What is the size of this Rolex Oyster Perpetual and who will it suit?
A: The case measures 25 mm, a classic petite size that wears elegantly on slimmer wrists. The bracelet on this piece currently fits up to approximately 15.5 cm; it can be resized by a professional watchmaker. If your wrist is larger, additional links may be required.

Q: Which movement is inside reference 67180 and what is the power reserve?
A: It is powered by the Rolex calibre 2130 automatic movement, beating at 28,800 vph with 29 jewels. When properly serviced, the calibre offers an approximate 42‑hour power reserve.

Q: Is the watch automatic and can I wind it manually if it stops?
A: Yes. It is self‑winding during wear. If it has stopped, unscrew the crown, wind it clockwise at least 25 turns (up to about 40), then screw the crown back down. This provides enough power to start the movement before normal wrist wear maintains the reserve.

Q: Can I swim or shower with this 1990 Oyster Perpetual?
A: When new, Oyster Perpetual models were rated to 100 m thanks to the sealed Oyster case and screw‑down crown. However, water resistance is not permanent on a vintage watch. Unless the gaskets have been replaced and the watch has recently passed a professional pressure test, we recommend avoiding submersion, hot showers, saunas and steam. Always ensure the crown is fully screwed down.

Q: What does “Oyster Perpetual” actually mean?
A: “Oyster” refers to Rolex’s sealed case construction with a screw‑down crown and caseback that was designed for water resistance; “Perpetual” refers to the self‑winding rotor that keeps the watch powered as you wear it.

Q: Does ref. 67180 use a sapphire crystal?
A: Yes. This reference is fitted with a scratch‑resistant sapphire crystal, offering better durability than acrylic used on earlier generations.

Q: What is included with this watch?
A: Everything included is shown under the product information on this page. This particular piece is offered without additional items such as a branded box or card unless stated otherwise in product information.

Q: The serial number is illegible—how do you authenticate it?
A: On pre‑2005 Rolex watches, serial numbers are engraved between the lugs and can become faint from decades of wear or polishing. Authenticity is verified through a multi‑point inspection of the movement, case engravings, dial printing, materials and construction, not by the serial alone. Our specialists perform comprehensive checks and stand behind the authenticity of every item we sell.

Q: How accurate should I expect it to be, and how often should it be serviced?
A: Accuracy for a freshly serviced, chronometer‑grade Rolex movement typically targets around −4/+6 seconds per day under test conditions, but real‑world performance varies with age and wear. For vintage pieces, a full service approximately every 5–7 years (and pressure testing after any service) is a sensible guideline, with intervals adjusted based on use and performance.

Q: Can I change the bracelet to a leather strap?
A: Yes, many owners enjoy this reference on leather. A qualified watchmaker can advise on the correct strap, spring bars and fitment for this case to ensure proper security and comfort.