codes What do BXW and ROR mean stamped onto the movement. Watch manufacturors often stamp a 3 letter code onto the movement. These are US import codes and generally only found on US watches. It's rather a big list. harrison John Harrison's Chronometers Guardian1 Clockmaker John Harrison vindicated 250 years after ‘absurd’ claims Guardian2 A true sea shanty: the story behind the Longitude prize Independant John Harrison's 'longitude' clock sets new record - 300 years on Longitude Longitude Nova Revolution Revolution in time MST 436 Why it's the best ever. Why it's the best movement ever made.

right to repair Consumer right to spare parts, now law in some places Precedent The Watchmaker Act did authorize a test of watchmakers ability until 1952 In the 1980s and beginning with Rolex, watch manufacturers began to stop selling parts... it went downhill from there and more pro-consumer legislation was made into law. springbars The Surprisingly Not Totally Boring Search For Who Invented The Spring Bar It’s probably a good thing that nobody has ever asked me who invented the spring bar, because up until about a week ago, if they had, I’d have had to admit that I had absolutely no idea, and had never given it a moment’s thought. In fact, aside from occasionally cursing at one when it flew across the room during an ill-advised late-night impulsive strap change, I had hardly given spring bars any thought on any level at all for pretty much the entire time I’ve been interested in watches