Introduced in the late 1980s and produced into the 1990s, the Mini‑Sub line distilled Tudor’s Submariner DNA into smaller, highly wearable cases. This is ideal if you are someone with both a smaller wrist size and a smaller budget. Aimed at divers and everyday wearers who preferred compact proportions, these watches retained the many of the iconic design features of the Sub.
Two core sizes define the family: approximately 33 mm models typically referred to as the Mini‑Sub, and ~36 mm variants often grouped as mid‑size Submariners. Both carried familiar Sub design features;guarded crowns, rotating timing bezels, and high‑contrast dials—with either snowflake or Mercedes‑style hands depending on era and configuration.
References to look for include 73090/73091 (33 mm) and 73190 (36 mm), seen in black or blue dials with matching inserts. Water‑resistance ratings commonly spanned 100–200 m. Lume was tritium during this period, so even ageing and original plots are desirable to collectors.
The Mini-Sub were powered by ETA calibres: small‑diameter automatics such as the 2671 for 33 mm models and workhorse 28xx series (e.g., 2824‑2) in larger cases. Parts availability and serviceability remain strong, which keeps maintenance straightforward.
Why it matters today: the Mini‑Sub anticipated the current return to compact tool watches. On smaller wrists or for those who prefer vintage proportions, it delivers authentic Submariner character without the bulk.