Introducing Tudor Unveils the Black Bay 54 Lagoon Blue

Since launching the Black Bay collection in 2012, Tudor has grown into a powerhouse with a distinct identity, thanks to its in-house calibres and bold design choices. One such bold move came in 2023 with the introduction of the Black Bay 54, a dive watch distilled down to 37mm, reminiscent of Tudor’s first dive watch from 1954. For 2025, Tudor injects a burst of color and character into this compact diver. Meet the Black Bay 54 Lagoon Blue, a watch that blends the classic form of its predecessor with a splash of summer-ready flair.

The watch maintains the original’s sleek proportions, with a 37mm diameter, 11.24mm thickness, and 46mm lug-to-lug length. The case is crafted from stainless steel, balancing brushed surfaces with polished bevels. The most noticeable update is the mirror-polished steel bezel insert, featuring a tone-on-tone 60-minute scale.

As expected from Tudor’s diver pedigree, the watch features a screw-down crown, a screwed caseback, and water resistance to 200 meters. It’s every bit a serious dive watch, just dressed differently for the season.

This version introduces a sand-like textured blue dial that plays beautifully with the light. It retains the hallmark Snowflake hands and applied indices, all rendered in polished metal and filled with white Super-LumiNova for high legibility. The minute track and dial text are printed in a darker shade of blue.

Powering the watch is the Calibre MT5400, developed by the Kenissi manufacture. This automatic movement beats at 28,800 vph (4Hz) and offers a robust 70-hour power reserve. It features a non-magnetic silicon hairspring, and a transversal balance bridge that is designed to provide enhanced stability to the balance wheel. It’s also COSC-certified, with an accuracy tolerance of -2/+4 seconds per day.

Another notable upgrade is the five-link Jubilee-style stainless steel bracelet, replacing the previous riveted three-link version. It brings added shine and comfort and is equipped with Tudor’s T-Fit micro-adjustment clasp, allowing for 8mm of on-the-fly sizing. The watch is priced at CHF 3,900, approximately AED 16,510.

For more information, visit Tudor’s official website.