Model: Tudor Prince Date Hydronaut 89190 – Glossy Ink Blue Dial
Overview:
The Tudor Hydronaut ref. 89190 is a discontinued first-generation dive watch, distinguished by its angular stainless steel case and striking glossy ink-blue dial.
Unlike the matte or sunburst finishes commonly found on traditional dive watches, the deep blue dial has an almost lacquer-like appearance, shifting between dark navy and brighter blue tones depending on the lighting.
Combined with the Hydronaut's distinctive case architecture, rotating dive bezel and stainless steel bracelet, the result is a particularly interesting interpretation of Tudor's classic sports watch design.
This example has recently been serviced and is presented in excellent overall condition, accompanied by its original Tudor box, documentation and warranty card.
History:
Introduced around the turn of the millennium, the first-generation Tudor Hydronaut represents an interesting transitional period in the brand's history.
Following the discontinuation of the Tudor Submariner collection, Tudor began developing a more independent design identity, gradually moving away from the Rolex-inspired styling that had characterized many of its earlier sports watches.
The Hydronaut was one of the models that reflected this transition, introducing a more contemporary case design with pronounced angular surfaces, distinctive crown guards and a unidirectional rotating dive bezel.
While vintage Tudor Submariners have become increasingly collectible, the Hydronaut remains a comparatively overlooked chapter in the brand's dive watch history.
The glossy ink-blue dial of this example is particularly appealing, offering a rich and expressive finish that contrasts beautifully with the watch's otherwise purposeful construction.
Specifications and Condition:
Overall: Excellent condition, recently serviced
Reference: 89190
Case: Stainless steel case in excellent condition
Dial: Glossy ink-blue dial in excellent condition
Bezel: Unidirectional rotating dive bezel with 120-click operation
Movement: Recently serviced and running within COSC chronometer tolerances
Bracelet: Original Tudor stainless steel bracelet, currently fitting approximately 18.2cm
Includes: Original Tudor presentation box, manuals, papers and warranty card
Movement:
Tudor Caliber 2824-2 automatic movement
ETA 2824-2-based mechanical movement
28,800 vibrations per hour (4 Hz)
Approximately 38-hour power reserve
Automatic winding with date display
The ETA 2824-2 is a well-established Swiss automatic movement known for its reliability, straightforward servicing and widespread availability of replacement components.
Its use in the Hydronaut reflects Tudor's traditional emphasis on robust, practical mechanical movements designed for everyday wear.
Dimensions:
40mm diameter
Approximately 46.5mm lug-to-lug
Approximately 11mm thickness
20mm lug width
