In this insightful article, WatchProSite contributor quattro delves into the captivating world of regulator watches, spotlighting four exceptional models that exemplify the distinct appeal of this horological complication. Building on an extensive reference list compiled by fellow collector Cazalea, quattro shares his personal favorites, offering a connoisseur's perspective on their unique design elements and technical merits. His selections highlight how subtle details, from subdial placement to movement architecture, define the character of these intricate timepieces.
If, like me, you love regulators displays, check the
thread by Cazalea, referencing 70 different dial layouts!
Here are just 4 models which I really like.
Best.
1/ BREGUET ref. 3690 with JLC based caliber 818/4
I love the off centred hours subdial and the absence of date window: two details which differentiates this model from other Breguet regulators, like ref. 1747 & 5187, which have a centred hours subdial at 6 or 12 o'clock and a date window at 3 or 6 o'clock.

credit: theydid
2/ Laurent Ferrier Square Regulator with caliber LF 228.01
My personal favorite version of the square case and one of the purest regulator I know. And rose gold with anthracite dial would be my pick.

credit: LF website

credit: Mr Watchley
3/ Patek Philippe Annual Calendar Regulator ref. 5235/50R with caliber 31-260 REG QA
Some might like the white gold version more, but this one is my favorite: very dressy, yet with a dynamic, sporty touch because of the white hands, numerals and tracks. And I like the architecture of the movement a lot, as well as the Advanced Research features (Pulsomax® escapement and a Spiromax® balance spring in Silinvar®).

credit: monochrome
4/ Vacheron Constantin Malte Dual Time Regulateur, ref. 42005/000R-9034 with caliber VC1206
Here again, I chose my favortie color scheme. The case is thick and the design strong, but the overall look is great, imo.

credit: horology & co

credit: watch buyers