This Railmaster is one for the big wristed coming in at 49.2mm.  Features a manual-winding movement with small seconds at 6 o’clock.  The watch is in excellent condition, comes with the original Omega leather strap.
 
*** The pictures may show the reflection of the camera lens, black spots mostly ***

Details:
 
Make: Omega
Model: Railmaster Aqua Terra
Reference: 2806.52.37
Year: 2000's
Material: Steel 
Dimensions: 49.2mm
Crystal: Sapphire
Movement: Manual Wind
Bracelet/Strap: Original Leather Strap
Lug Width: 24mm
Box/Papers: No/No