A perpetual calendar automatically adjusts for varying month lengths and leap years—displaying the correct date without manual input.

A chronograph is a stopwatch feature built into a watch. Operated by pushers on the case, it tracks time through additional hands and subdials. These are best used for short intervals—keeping them running constantly can cause extra wear.

A chronometer is a highly accurate mechanical watch certified by the Swiss COSC. It meets strict precision standards across different positions and temperatures. For the wearer, it means reliable daily timekeeping within a certified range.

A complication is any feature added to a watch beyond basic timekeeping. Examples include calendars, chronographs, and moonphases.

A watch movement is the internal mechanism that powers the timekeeping—excluding the case and dial. In vintage pieces, the movement is usually hidden.

Case scratches can be polished out, but polishing removes metal—especially when done by machine. Hand-polishing is gentler, but we still recommend waiting as long as possible before having your watch polished. If requested, a complimentary polish is included with any full service at GAUTHIER Watches.

Plastic/acrylic crystals can be polished multiple times before needing replacement. At GAUTHIER Watches, we can polish your crystal on-site while you wait.

Modern watches (e.g. Rolex after 1987) typically use sapphire crystals, which are extremely scratch-resistant and lie flat against the case. Older watches usually feature plastic or acrylic crystals, which are more domed and warmer to the touch. While sapphire resists scratches, it’s also more likely to shatter if dropped—potentially damaging the dial or movement. Plastic crystals, on the other hand, can often be polished if scratched and are less prone to shattering. Many collectors appreciate their vintage character despite being less durable.

Original boxes, papers, straps, and accessories are often lost over time—and when they are present, they do typically add a premium to the price. Unless otherwise stated, our watches are sold without original packaging or papers.

Each GAUTHIER timepiece is carefully sourced from respected watch fairs, auctions, and vetted dealers across the U.S. and internationally. We’re proud members of the International Watch and Jewelry Guild (IWJG) and maintain strict standards for authenticity, condition, and character. If you have a watch you’d like to sell that fits our aesthetic, we’d love to hear from you.

Unlike mechanical movements, quartz circuits eventually fail—and are often beyond repair. When this happens, replacing the entire movement becomes necessary, which compromises the originality and collectibility of the watch. That’s why most quartz watches are considered less collectible, though there are always exceptions. We do carry select quartz models, but our focus remains on mechanical timepieces for their enduring value and history.

With regular service—ideally every 3 to 5 years—a mechanical watch can run reliably for generations. Regular maintenance includes cleaning, lubrication, and checking for worn components. Be sure to choose a qualified watchmaker who values originality and avoids unnecessary part replacements. Our expert watchmakers specialize in preserving both the function and heritage of vintage timepieces, and we offer highly competitive service pricing.