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The new Longines RailRoad (reference L2.803.4.23.0) is much bigger than the link original version, that measured 35mm instead of the 40mm of today's model. link However, a lot of details are very similar on this Longines Heritage version of the link RailRoad RR.888.

Today Omega's finally announced what we all pretty much knew to be inevitable a standard-production Moonwatch but with the co-axial escapement equipped Master Chronometer-certified caliber 3861. The caliber 1861 is now officially discontinued marking the final retirement of what had until now been the most recent heir to the original link caliber 321 after a production run in the Speedmaster Professional Moonwatch of fifty or so years the calibers 8611861 began to replace the link 321 in link 196869.