When it comes to luxury watches, the movement inside the timepiece is the heart and soul, dictating its accuracy, durability, and overall performance. While many movements are celebrated for their precision and reliability, some have gained notoriety for their frequent issues and lackluster performance. Here’s a look at some of the most unreliable watch movements that enthusiasts often caution against.

ETA 2892-A2 (Early Versions)

The ETA 2892-A2 is widely used and respected in its current form, but early versions of this movement had several issues. These included problems with the rotor and winding mechanism, which often led to poor power reserve and erratic timekeeping. Many of these early issues have been resolved in later iterations, but collectors should be wary of older models featuring this movement.

Seiko 7S26

The Seiko 7S26 is found in many entry-level automatic watches, such as the popular Seiko SKX series. While it’s known for its robustness, it has been criticized for its lack of hacking and manual winding features. Additionally, some users have reported issues with its accuracy over time, requiring frequent adjustments or servicing.

Valjoux 7750 (Unmodified)

The Valjoux 7750 is a workhorse movement found in many chronographs. However, in its unmodified form, it can be prone to issues. The primary complaint is the rotor noise and the “wobble” effect caused by its unidirectional winding system. Additionally, the movement can suffer from poor regulation if not properly adjusted, leading to accuracy problems.

ETA 2824-2 (Lower Grades)

The ETA 2824-2 is a ubiquitous movement, available in several grades. The lower-grade versions, particularly those found in more affordable watches, have been known to exhibit issues. These can include inconsistent accuracy, less efficient winding mechanisms, and a higher propensity for requiring frequent servicing compared to higher-grade versions.

ST16 (Seagull 1651)

The ST16, also known as the Seagull 1651, is a Chinese movement that has gained popularity in budget-friendly automatic watches. While it offers an affordable entry into mechanical watch ownership, it has a reputation for being unreliable. Issues such as poor timekeeping, frequent need for regulation, and questionable durability have been reported by many users.

Sellita SW200 (Early Versions)

The Sellita SW200 is often seen as a direct competitor to the ETA 2824-2. Early versions of this movement faced criticism for reliability issues, including problems with the keyless works and date mechanism. Later versions have seen improvements, but watches with early SW200 movements should be approached with caution.

Miyota 8215

The Miyota 8215 is a popular movement in many affordable automatic watches. However, it has been criticized for its lack of a hacking feature and its noisy rotor. Additionally, some users have reported issues with its accuracy and power reserve, making it less reliable than other movements in its class.

ETA 7751

The ETA 7751 is a complex movement featuring a chronograph, day, date, month, and moon phase. Its complexity can lead to reliability issues, particularly with the calendar functions. These movements are known to require frequent servicing to maintain their accuracy and functionality, which can be a hassle for owners.

Bringing it all Home

While many watch movements are celebrated for their reliability and precision, some have gained notoriety for their frequent issues and lackluster performance. It’s essential for watch enthusiasts and potential buyers to do their research and understand the potential pitfalls of certain movements, especially in older or lower-grade versions. By being aware of these issues, you can make a more informed decision and choose a timepiece that will offer reliability and satisfaction for years to come.