There are some barber shop debates that people will never agree on. Is Coke really better than Pepsi? Does pineapple belong on pizza? Is LeBron the greatest of all-time, or does Michael Jordan and his six rings forever hold that distinction?

Rolex is generally regarded as the best watch brand. But what about the movements inside the watch itself. Which is the best? We take a look at some of the best movements in this week’s post.

Mans Movement #1570

It wasn’t until 1957 that Rolex developed their own in-house movement, the 1500 series. They became a mainstay of the company, remaining in production for 20 years.  Both the 1560 and 1570 were COSC Certified.

To gain certified chronometer status, the calibers had to prove themselves accurate to within -4/+6 seconds a day over a 15-day period.

Mans Movement #3035

The first men’s high-beat caliber Rolex had ever made. It increased the balance speed from 19,800bph to 28,800bph.

It was this new speed on the 3035, causing the seconds hand to ‘tick’ eight times per second.

It was the first automatic caliber to feature a quickset function.

Ladies movement #2030

The 2030 was produced for 13 years, from 1970 to 1983. The 2030 is the no-date version. Its sister is the 2035 which has a date function. It is a 28-jewel self-winding movements, they borrowed many of the technical enhancements first seen in the all-conquering 1500 series. In addition, they released them at the end of the fifties. This proved to be very reliable in some of the most popular watches in the women’s collection.

Ladies Movement #2135

Rolex’s second generation of their in-house 2000 series calibers first appeared in 1983. As scaled down versions of some of their most trusted and widely-used movements, specially engineered to power their range of women’s watches, the Cal. 2130 and 2135 replaced the initial Cal. 2030/35 that had found success inside the Ladies Oyster Perpetual, as well as the ladies and midsize Datejust.

Ladies Movement #2235

In 1999, Rolex began the transition from their highly successful Caliber 2130 series of calibers, the second generation of movements crafted specifically for the ladies’ watch range, and started the role out of its replacement, the Caliber 2230.

The Caliber 2230 can trace its lineage back to the big brother of all modern Rolex movements, the model #3135, The brand’s most widely used caliber, it serves as the jumping off point for all subsequent mechanisms, a rock solid foundation to which various complications can be added as and when necessary.

Mans Movement #3235

Introduced in 2015, the core technologies of the 3255 will likely soon be the basis for a majority of Rolex’s movements.

Rolex claims that the 3255 handily doubles the accuracy of +6/-4 secs/day set out by Switzerland’s official accuracy testing program, COSC.

Mans Movement #9001

Model 9001. Rolex’s most complicated movement with two time zones and an annual calendar (Sky-Dweller only)

Mans Movement #4130

Model 4130. No-date chronograph movement (Daytona only)

Mans Movement #3135 The Best of the Best

The 3135 still forms the basis of most modern Rolex movements. It includes an instantaneous date change at midnight. The 3135 is the basis for many variations.

The #3135 is by far the best Rolex movement. The quality is outstanding, it is easy to work on and easy to repair. The auto and date are simple and work perfectly. No hidden problems on this one, it just runs as designed and is a pleasure to work on, it is the “workhorse” of the Rolex line and one of the best mechanical movements produced today by any manufacturer.

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