Model: Tudor Prince Date Hydronaut 89190P – Blue Mother-of-Pearl Dial
Overview:
The Tudor Hydronaut ref. 89190P is an uncommon variation of Tudor's first-generation Hydronaut collection, distinguished by its striking blue mother-of-pearl dial.
Depending on the lighting and viewing angle, the dial shifts between different shades of blue, with subtle iridescent reflections that give each mother-of-pearl dial its own character.
Combined with the Hydronaut's angular stainless steel case, rotating dive bezel and robust construction, the result is a particularly distinctive interpretation of the traditional Tudor sports watch.
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, moving away from the Rolex-inspired styling that had characterized many of its earlier dive watches.
The Hydronaut was among the models that reflected this transition, introducing a more contemporary case design with pronounced angular surfaces, distinctive crown guards and a rotating dive bezel.
While vintage Tudor Submariners have since become highly collectible, the Hydronaut remains a comparatively overlooked part of the brand's dive watch history.
The blue mother-of-pearl dial of the 89190P is particularly interesting, introducing an elegant and expressive element to an otherwise purposeful sports watch.
Specifications and Condition:
Overall: Excellent overall condition, recently serviced
Reference: 89190P
Case: Stainless steel case in great condition
Dial: Original-style blue mother-of-pearl dial in excellent condition, displaying varying shades of blue depending on the lighting
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 18.5cm
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:
41mm diameter
Approximately 46.5mm lug-to-lug
Approximately 11mm thickness
