Tudor Submariner 79090

Tudor introduced the 79090 in 1989 as the date-equipped replacement for the undated late Submariner. The date explains the movement choice: the ETA 2824-2 supplies the quick-set calendar and automatic winding, while the watch retained the 200 m case architecture and acrylic crystal. Phillips identifies the reference with a 39 mm case, plexiglass and bidirectional bezel; specialist measurements often round the case to 40 mm, which is why both figures appear in cataloguing.

The visual change from the preceding 76100 is separate from the later crystal and bezel change. The 76100 is associated with snowflake hands and earlier square-marker styling. The 79090 instead presents Mercedes hands and triangular luminous plots at 6 and 9, giving the dial a more conventional Submariner appearance. The brief does not document a later cutoff for the hand set, so the hands identify the 79090 generation rather than a precisely dated sub-era.

Tritium is likewise a material identification, not a colour chronology. The lower dial reads “T SWISS T” or “T-SWISS-T” in published descriptions, and the marking can occur with either black or blue dial and bezel. The reason for the punctuation and spacing differences is not documented. Cream, vanilla or darkened plots are best read as aging states of tritium, not as separate factory variants.

The decisive next step came in 1995 with ref. 79190. That reference changed the crystal to sapphire and the bezel to a unidirectional notched design, while retaining the broad date-equipped format. In other words, the 79090 itself made the snowflake-to-Mercedes transition, but the acrylic-to-sapphire and bidirectional-to-unidirectional transition belongs to the 79190. Across only one reference window, Tudor moved from an earlier handset language to the later case-and-bezel architecture while keeping the 79090 internally coherent. That separation is why the 79090 is best understood as the last complete acrylic/friction-bezel date configuration, not as a loose bundle of transitional parts.

These three references frame the 79090 at the point where Tudor’s Submariner design moved from its snowflake past toward its sapphire future. The 76100 shows what changed in the hands and dial, the 79190 shows what changed in the crystal and bezel, and the smaller 75090 shows that the late-generation formula was offered in more than one case size.

Buying a Submariner 79090 is less about finding the most dramatic patina than about preserving the complete late-acrylic configuration. Replacement dials, mismatched hands, incorrect inserts and over-polished cases can make a watch look plausible while removing the evidence that makes the reference distinctive. The 39–40 mm measurement also deserves a practical check, since published dimensions use both figures.

Start with the dial and hands together. The triangular 6 and 9 markers, Mercedes handset and lower tritium signature should make visual sense as one watch, not merely as individually attractive parts. Then inspect the acrylic crystal, bidirectional bezel, crown, case-back components and ETA 2824-2 movement. A 200 m rating belongs to the model’s specification, not to an untested vintage example.

For someone who wants a Tudor Submariner that still feels compact and purposeful on the wrist, the 79090 offers a strong middle ground between early snowflake character and later sapphire practicality. Its short run means the watch is read through surviving details: an honest case, coherent lume and a correct dial usually tell more about ownership than a spectacular but unexplained colour shift. That is what living with one is like, a durable steel diver whose age remains visible through acrylic, tritium and the marks of use.