S&W has chambered a few of many of their N frame revolver models for .45 Colt, especially revolver models that were also or originally chambered for the .45 ACP. Triple Lock, .45 H.E. Second Model, 1917, even 12 .38-44 Heavy Duties, the 1950 Target and Military/M-26 and M-22, 1955 Target/Model 25... These were practically always special orders until 1977.
In 1977, S&W manufactured 10,000 Model 25-3 and 25-4 revolvers to commemorate the 125th anniversary of the company. These were the first cataloged .45 Colt-chambered guns they made. Demand for them was great, many purchased them for shooters and they sold out fast enough to convince S&W that there was a market demand for a standard production revolver in .45 Colt. In 1980, they began making the Model 25-5, a target sighted N frame in blue or nickel finish with 4, 6 or 8-3/8 inch barrels.
When the stainless steel 625 series began, S&W added variants in .45 Colt to the mix. We got Classics and Mountain Guns in stainless and then blue.
It's a dandy cartridge for the big N frame. S&W should have made them a standard item about 70 years sooner than they did!