Tudor Prince Date 200m 660ft Hydronaut ref 89190 Black Dial Steel Mens' Watch features: 
- Self-winding Automatic Movement

- 42mm Steel Case
Signed "Tudor Prince Geneva" Screw Down Case Back
Screw Down Crown with Triplock Triple Waterproofness System

- Sophisticated Black Dial with Baton & Triangle-shaped Numerals
covered by scratch resistant sapphire crystal, 
The hours and minutes are tracked with stylized luminous hands,
while the seconds are counted with a thin silver central hand.

- Steel Sports Bezel with elegant black accents

- Date aperture at 3 o'clock (with cyclops lens over it - signature feature of the Rolex brand)

- Fitted on a sturdy Stainless Steel Bracelet with a signed deployment buckle.

- Instantaneous Date Setting Feature 

- 200 Meters / 660 Feet Waterproof

In great condition & in excellent working order
Comes in generic box, certificate of authenticity & 6 months warranty on parts. 
 
circa 1990’s