Tudor Prince Date Hydronaut Blue Dial 89190

The Tudor Prince Date Hydronaut 89190 with blue dial is one of the most underrated dive watches in Tudor’s history, offering a distinctive alternative to the brand’s iconic Submariner and modern Black Bay collections. Introduced in the late 1990s, the Hydronaut represented Tudor’s evolution into a more contemporary dive watch, featuring a robust 40mm stainless steel case, an aggressively knurled unidirectional bezel, and a striking sunburst blue dial that shifts beautifully with changing light. Broad luminous hands, applied hour markers, a Cyclops date display, and 200 meters of water resistance make the 89190 a capable professional dive watch while giving it a personality all its own. Produced before the Black Bay redefined Tudor’s design language, the Hydronaut stands as an important chapter in the brand’s modern history.

Powering the 89190 is the reliable ETA 2824-2 automatic movement, a proven Swiss caliber celebrated for its durability, ease of servicing, and dependable everyday performance. Paired with Tudor’s comfortable multi-link stainless steel bracelet and protected by a scratch-resistant sapphire crystal, the Hydronaut delivers the practicality expected of a true tool watch while maintaining a refined presence on the wrist. As collectors continue to rediscover Tudor’s pre-Black Bay references, the Hydronaut has gained recognition for its unique design, outstanding value, and historical significance. For enthusiasts seeking a capable Swiss dive watch that stands apart from more common offerings, the blue dial Prince Date Hydronaut 89190 offers distinctive styling, proven reliability, and a compelling glimpse into an often-overlooked era of Tudor watchmaking.

Reference: 89190

Circa: 2000's

Bracelet: Stainless Steel bracelet

Case: 40mm x 10.8mm thickness - Stainless Steel

Lug Width: 20mm

Movement: ETA 2824-2 - Automatic

Functions: Hours, Minutes, seconds, date

Box and Papers: Inner/outer boxes - no warranty card

Crystal: Sapphire

Bracelet size: 7.5”

Case has little to no wear. Bracelet has little to no wear. Dial, hands, and crystal have no wear. Runs within spec.

Tudor was established in 1926 by Hans Wilsdorf, the founder of Rolex, with a vision to create watches that offered the same reliability and precision as Rolex, but at a more accessible price point. Built with robust Swiss movements and housed in Rolex-quality cases, Tudor quickly earned a reputation for producing tool watches trusted by military units and professional divers around the world. In the 1950s and ‘60s, Tudor introduced iconic models like the Oyster Prince Submariner, worn by the French Navy, and carved out a legacy as a maker of rugged, no-nonsense timepieces built to perform under extreme conditions.

In recent years, Tudor has reemerged as one of the most exciting names in modern watchmaking. Collections like the Black Bay, Pelagos, and Ranger pay homage to the brand’s vintage roots while incorporating in-house calibers and contemporary design updates. The Black Bay Fifty-Eight, in particular, has become a collector favorite for its perfect blend of vintage proportions and modern engineering. With a design language all its own and a renewed focus on manufacturing independence, Tudor has established itself as far more than Rolex’s younger sibling—it’s a brand that balances heritage, innovation, and value with serious horological credibility.