The Real Disadvantages of Automatic Watches (Honest Guide)

An automatic watch, also known as a self-winding watch, is a mechanical movement that winds itself using the natural motion of the wearer's wrist. A weighted rotor spins as the wrist moves, transferring energy through a series of gears to wind the mainspring. As long as the watch is worn regularly it never needs a battery or manual winding.

The mechanism is a genuine feat of engineering — hundreds of tiny components working in precise sequence, entirely without electronics. The first successful automatic was created by Abraham-Louis Perrelet in the late 1770s. The modern rotor mechanism was introduced by Swiss watchmaker John Harwood in 1923, laying the foundation for every self-winding movement produced since. To understand how automatic watches work in detail, see our complete guide.

That engineering is also the source of every disadvantage listed below. Complexity is the price of the craft.

1. They Are Less Accurate Than Quartz

This is the one automatic watch owners rarely want to admit. A standard quartz movement is accurate to within 15 seconds per month. A COSC-certified mechanical chronometer is considered accurate if it stays within minus 4 to plus 6 seconds per day. That is up to 3 minutes of drift per month from a certified movement. An uncertified automatic can drift significantly more.

For everyday timekeeping this rarely matters. For someone who needs to know the precise time at a glance without checking their phone it matters a lot. Automatic watches require regular synchronisation to a reference time to stay accurate.

2. They Stop If You Do Not Wear Them

Most automatic movements carry a power reserve of 38 to 72 hours. Leave the watch on a nightstand for a weekend and it will have stopped by Monday morning. You then need to manually wind it and set the time before wearing it again.

If you own multiple watches and rotate them this becomes a recurring inconvenience. Watch winders — motorised cases that keep automatic watches running when not worn — solve the problem but add cost and another object to maintain.

3. They Require Periodic Servicing

A mechanical movement needs professional servicing every 5 to 7 years. The lubricants inside dry out over time, causing increased friction between components. Left unserviced the movement wears faster, loses accuracy, and eventually fails.

A service on a mid-range automatic typically costs between $150 and $400 depending on the movement and the watchmaker. On a high-end movement it can cost significantly more. This is a recurring cost of ownership that quartz watches do not carry — a quartz movement often outlasts its case without ever needing service beyond a battery change.

4. They Are Sensitive to Shocks and Magnetism

The balance wheel and hairspring that regulate a mechanical movement are extremely delicate. A hard knock — dropping the watch on a hard floor or striking it against a desk — can disturb the regulation and cause the watch to run fast, slow, or stop entirely. Most modern automatics include shock protection systems but they are not infallible.

Magnetic fields are a subtler problem. The hairspring in most movements magnetises easily. A magnetised hairspring sticks to itself, causing the watch to run dramatically fast — sometimes gaining 5 to 10 minutes per day. Common sources include laptop bags, phone speakers, magnetic clasps on bags, and induction hobs. Demagnetisation is simple and inexpensive at a watchmaker, but it is an inconvenience that quartz owners never encounter.

5. They Cost More for the Same Specification

At every price point, an automatic watch costs more than a quartz watch with equivalent case quality, materials, and finishing. The movement itself is more expensive to produce, more expensive to assemble, and more expensive to service. You are paying for the engineering and craft of the mechanism, not for better timekeeping or better build quality.

That is a legitimate reason to buy an automatic — the appreciation of the mechanism is real and valid. But it is worth being clear about what the premium is actually for. A high-quality quartz will often deliver superior case quality and finishing compared to an automatic at the same price point.

Every disadvantage listed above is real and documented. None of them stop automatic watches from being desirable objects because desirability is not purely a function of performance.

A mechanical movement is a piece of engineering that can be seen, heard, and understood. The seconds hand sweeps rather than ticks. The rotor spins visibly through a caseback window. The watch connects its wearer to a tradition of craft that goes back three centuries. For a certain kind of person that connection justifies every inconvenience.

For another kind of person — one who needs accurate time on demand, who travels across time zones, who does not want to think about whether their watch has wound down — a well-made quartz in an equally well-built case is the more rational choice. Both positions are legitimate. The honest answer is to know which one you are before you buy.

If you have decided an automatic is right for you, the key factors when choosing are movement quality, case material, water resistance, and case geometry. For rectangular automatics specifically, the movement must be shaped or modified to fit a non-round case — this is an additional engineering challenge that fewer brands attempt, which is why rectangular automatics represent a smaller and more specialised segment of the market.

Look for sapphire crystal rather than mineral glass, a solid caseback or exhibition caseback with secure sealing, and a stated water resistance rating. For dress wear 5 ATM is sufficient. For anything more active, 10 ATM or higher is advisable. Reputable brands for rectangular automatics include Rolex, Omega, Seiko, and Söner.

If you own an automatic watch and need it serviced, choose a watchmaker who specialises in mechanical movements. A well-documented service record can significantly enhance the watch's resale value and appeal to future buyers.

The Söner Nostalgia uses a Swiss ETA 901.001 quartz movement with an 11-year battery life. No servicing required during that window. Accurate to within seconds per month. The case is 800HV hardened surgical steel with sapphire crystal. It looks, wears, and ages like a precision instrument.

For those who want the mechanical experience, the Söner Amorous uses a Sellita SW100A Swiss automatic with 25 jewels, 28,800 vibrations per hour, and a 42-hour power reserve in a 40x28mm rectangular case. All the craft of a mechanical movement in the only case geometry that truly belongs to the dress watch tradition.

Both carry a 10-year international warranty and 5 ATM water resistance as standard.