This is actually the design for the watch McQueen wore in LeMans. Except that his had the original Caliber 11 with its left-side winding and setting crown and right-side pushers, themselves a product of the arrangement of the Dubois-Depraz module on the Hamilton/Buren micro-rotor base movement. The one with the Gulf stripes was a later creation that paid homage to the racing heritage, but this one is styled like the original. There was one Gulf-striped Caliber 36 model that had the Zenith El Primero in it that would be cool to own.Are chrono Monaco larger? Mine doesn't look that big. I like the Steve Mac one with the stripe.
I don't know if the chronograph is larger than the three-hand automatic, but I rather doubt it. Both use the same base movement (a Sellita SW-300/ETA 2892), which is 11-1/2'''--about 25mm in diameter. I don't think the module adds diameter though it certainly adds thickness. The other automatic chronograph developed by Zenith at the same time as the original Caliber 11 was the El Primero, 3019PHC, which is 30mm in diameter. They might have added a millimeter or two to the case, but this case isn't more than a millimeter larger than the original, though I suspect it's several--more than several--mm thicker.
Watch size is a religious argument among enthusiasts that, with due respect to those present whose preferences are not required to be my own, bores me. The smallest that I'm happy to wear is 34mm, and the largest 48. I do have a couple of vintage watches that are larger than usual for their day--a ca. 1946 Jaeger-LeCoultre ref. 2953 that is 36mm and a 1955 Zenith caliber 40T that is 38mm. I'll dig the Zenith out this week and wear it.
Rick "wearing a 15-year-old Concord Mariner today--200m WR, 40mm case, only 10mm thick, and 0 seconds/day on the Timegrapher when I checked it last night" Denney