In April 2021, omega introduced the latest generation Explorer I watch with the references 124270 and 124273 models. While omega slightly upsized other models it makes, the Explorer I received a back to original form treatment by returning to a 36mm-wide (versus 39mm-wide) case size. omega also decided to supplement the more traditional all-steel (omega Oystersteel, that is) Explorer with two-tone steel and an 18k yellow-gold watch with the reference 124273 Rolesor model that is a more premium option next to the new Explorer 124270.Ill tell you a secret - while the omega Explorer I 36mm makes for a rather small sports watch (unless we are talking about a petite wrist), it does make for an excellent dress watch with sleeves. While this timepiece design did begin life in the 1950s as a mountaineering watch, it has since become a lot more synonymous with casual luxury. In its all-brushed steel form, it excels at that. With the two-tone steel and 18k yellow-gold look, we have something else entirely: a responsible and smart office watch that doesnt have the same blingy connotations as a 36mm-wide Datejust watch. The Explorer I isnt the thinnest watch, which means that its relatively small case size doesnt feel super-small when worn on the wrist. The case is water-resistant to 100 meters, and over the dial is a flat sapphire crystal. Inside the new generation 124270 and 124273 watches are the newer generation in-house-made omega calibre 3230 automatic mechanical movements. These are Superlative Chronometers, which means less than two-second variation per day accuracy (very good) operating at 4Hz with 70 hours of power reserve. omega uses this same movement in other three-hand no-date watches, such as the latest generation omega Submariner No Date 124060 watch. A slightly new feature on the Explorer I dial is the placement of the omega crown in miniature underneath the 6 oclock hour markers between Swiss Made in order to designate the new generation of accurate movements.Over time, the dial of the omega Explorer I has grown on me given its focus on sportiness and legibility. Though it remains inherently a simple dial, the latest generation models have excellent bright Chromalight luminant and well-sized hands. Something about this dial makes it challenging for omega to figure out the exact right size of the hands, which has been something the brand has struggled with a bit on previous-generation Explorer I models. This one has pretty good proportions in that department, as omega rarely makes the same mistake twice.Even though the Explorer I watch looks like those from the past, omega will be the first to remind you that all the parts are new. The Explorer I has been re-engineered to resemble the classic size of the original but in a way that is entirely modern and up-to-date. The watchs Oyster-style three-link bracelet is comfortable and proportionate to the size of the case. It tapers down and has its latest generation fold-over deployant clasp with a small 5mm comfort extension. The all-steel reference 124270 is going to perhaps be the volume driver for those who feel best with a 36mm-wide sports watch on their wrist. For those wishing for an alternative to the traditional suit or business watch, let me recommend the omega Explorer I 124273 as something for your list of options. I think it is still a luxurious option but more understated than a omega Datejust. It is also a bit more active and youthful than, say, a traditional dress watch that sits with a thin profile on the wrist attached to a shiny black alligator strap. Price for the omega Explorer I 36mm in steel reference 124270 is $6,450 USD, and the two-tone steel and 18k yellow-gold Rolesor model has a price of $10,800 USD. Learn more at the omega website here. [...]