Up for sale is a beautiful Omega Speedmaster 3520.50 Mark 40 with Tritium hand. 
• Case size is 39mm with 45mm from lug to lug.
• Lug width is 18mm with 13mm of thickness.
• Housing Omega 1511 chronograph movement with Triple Date features. The movement is running at 270 degrees of amplitude and keeping time at +-10s/day.
• Unpolished case with some signs of usage. No big dents or deep scratches.
• Original sapphire crystal with no scratches.
• Come with original bracelet 825 bracelet which can fit up to 6.9 inches wrist.