For the summer of 2023 and to celebrate the collection’s 75th anniversary, Omega launches 11 new Seamaster Summer Blue watches — 11 new references spread across seven collections that the brand lists under the Seamaster category. Specifically, it is the Omega Aqua Terra, Worldtimer, Seamaster 300, Seamaster Diver 300M, Planet Ocean, Ploprof, and Ultra Deep collections that receive new and “bold dials that include a striking tone reminiscent of a perfect day on a boundless sea.”

Most importantly, here’s what’s common among all these new Omega Seamaster watches. They all wear a “Summer Blue” color on their dial, achieved with layers of varnish either carefully applied or free-flowing, depending on the required effect. The dials get darker on the watches with a greater depth rating — the Ultra Deep, rated at 6,000 meters, has but a splash of blue right at the center of its dial, whereas the Aqua Terra 150M 38mm has a bright blue face. The caseback of all pieces is either laser-engraved or relief-engraved with a trident-bearing Poseidon and two seahorses, Omega’s 1956 original and the brand’s current design. The seahorse theme dates back to the 1950s when Omega set out to create a symbol to represent the entire Seamaster collection. It was then that “designer Jean-Pierre Borle found the inspiration on a trip to Venice: the sculpted representations of Neptune’s Seahorse on each side of the city’s iconic gondolas.”

The Omega Aqua Terra 150M line receives three new references: the Aqua Terra 150M 38mm 220.10.38.20.03.004, Aqua Terra 150M 220.10.41.21.03.005 (steel bracelet), and Aqua Terra 150M 220.12.41.21.03.008 (rubber strap). The first in the list is the 38mm edition, powered by the Omega Co-Axial Master Chronometer 8800 with “sailboat” indexes and a brushed and polished bracelet with rounded links. The latter two are the 8900-powered 41mm versions with the well-known horizontally striped dial matched to a steel bracelet or rubber strap. Omega has updated the hands and indexes on both the 38mm and 41mm versions with a “unique light blue” Super-LumiNova to better match the new dial color. The Omega Aqua Terra 150M 41mm is priced at $6,400 on the rubber strap and $6,600 on the bracelet, while the 38mm version is $7,000.

The Omega Aqua Terra Worldtimer is a collection that received three new versions just a month ago — apparently, Omega has been leaning heavily on this line as of late. The 43mm-wide Aqua Terra Worldtimer Summer Blue keeps its laser-ablation dial texture and color-grading to mimic the creased surface of the various continents and adds an ocean in blue to match the blue main dial and blue city rings around its periphery. It must be said, the Aqua Terra Worldtimer looks very refreshing and cool in this new light blue. It comes either on a steel bracelet (220.10.43.22.03.002) or a blue rubber strap (220.12.43.22.03.002) and is powered by the Omega Co-Axial Master Chronometer Calibre 8938. The Omega Aqua Terra Worldtimer Summer Blue is priced at $9,200 on the rubber strap and $9,400 on the bracelet.

The Omega Seamaster 300 Summer Blue is a nod to the original Seamaster that was part of Omega’s “professional” trilogy (you can learn more about that trilogy here) back in 1957. The new version comes equipped with the 8912 caliber, measures 41mm-wide, and has a symmetrical case with polished and brushed elements with a steel bracelet to match. The varnished Summer Blue dial is a tad darker to reflect that it is double the water resistance of the Aqua Terra pieces. The indices are bright blue, save for the minute hand and the pip on the bezel which are green, in true Seamaster tradition. The Omega Seamaster 300 Summer Blue watch is priced at around $6,700.

The 42mm-wide Seamaster Diver 300M Summer Blue keeps its distinctive skeletonized hands and debatable helium escape valve at 10 o’clock and combines those with a PVD-treated and varnished Summer Blue dial with increased vignetting as the blue fades into black near the edge. On the front, the blue ceramic bezel is treated with a new Summer Blue grand feu enamel, the ZrO2 ceramic dial keeps its edged wave pattern, while around the back we find one of the cooler casebacks in recent memory: The aforementioned trident-bearing Poseidon and two seahorses in high-polished relief. Underneath we find the 8800 caliber. The Omega Seamaster 300M Summer Blue is available on a steel bracelet (210.30.42.20.03.003) or a rubber strap (210.32.42.20.03.002). The Omega Seamaster Diver 300M Summer Blue watch is priced at $5,900 on the rubber strap and $6,300 on the bracelet.

The brand claims that the Omega Seamaster Planet Ocean 600M Summer Blue (215.30.46.21.03.002) is for “those looking for serious dive tech.” Measuring in at a rather more compact 39.5mm-wide, the Planet Ocean 600M Summer Blue edition features chunky applied hour markers including block Arabic indexes, light blue Super-LumiNova around the dial and the hour hand, and, again, in keeping with Seamaster tradition, green on the minute hand and bezel pip. Its ceramic dial is PVD treated and varnished with a gradient finish, the caseback features the same design as the 300M version, and the watch is powered by the 8800 caliber. The Omega Seamaster Planet Ocean 600M Summer Blue watch is priced at $7,400.

The Omega Seamaster Ploprof Summer Blue (short for PLOngeur PROfessionnel, French for “professional diver”) is an absolute beast in the world of dive watches and although it is often ignored due to its ungainly unique design, thankfully, it was not left out from the 75th-anniversary celebrations and has received the Summer Blue treatment. Rated water-resistant to a crushing depth of 1,200 meters (4,000 feet), it features a dash of blue in the center of its dial that quickly fades into darkness. The bezel, too, is darker than what we’ve seen on other releases with a Summer Blue dial. The minute hand is in light blue, as are the chunky monobloc indexes and bezel markings. Everything we have just listed lights up in the dark, again, with the minute hand and bezel triangle in green and the rest in a new light blue. To find out what it’s like to wear a Ploprof in the long run, read our full review here. The Omega Seamaster Ploprof Summer Blue (227.32.55.21.03.001) watch is priced at $14,300.

The Omega Seamaster Ultra Deep Summer Blue delivers as one would expect from that bold name: It can travel to 6,000 meters below the surface of the ocean (plus another 25% safety margin beyond that) and keep on ticking. To learn more about the interesting wearing experience such a watch creates, read our hands-on here. The Omega Seamaster Ultra Deep Summer Blue edition watch is 45.5mm-wide with a case and bracelet crafted from O-MEGASTEEL. Its special dial texture Omega claims to be “an exact representation of the Challenger Deep mapped by the Five Deeps team.” Well, that texture now comes with a lacquered finish, produced by letting an “ocean of lacquer flow across the dial.” The case safeguards the Omega Co-Axial Master Chronometer 8912 caliber, the same as is in the Ploprof. A fun detail, the dial reveals an “OMEGA WAS HERE” scribble when viewed under UV light, pointing toward the world record dive of 10,935m and showing the Western, Central and Eastern Pools. The Omega Seamaster Ultra Deep Summer Blue watch is priced at $13,000.

This is our quick look at the Omega Seamaster Summer Edition watches, a big launch to celebrate the 75th anniversary of the collection. You can learn more at the brand’s website.