This Tudor Hydronaut is a great option if you want an affordable two tone diver watch. Its middle links are solid gold and quality of built is impeccable. The watch has a chipped crystal at 2 O'Clock, the part is on its way and watch will be serviced shortly, replacement of the crystal included.
 
Make: Tudor
Model: Hydronaut
Reference: 89193P
Year: 2000's
Material: Stainless Steel and 18k Gold
Dimensions: 40mm
Crystal: Sapphire Glass 
Movement: Automatic
Bracelet/Strap: Original Bracelet
Lug Width: 20mm
Box/Papers: No/No