Up for sale is an Omega Constellation Jumbo 168.001 Chronometer cal.561. The watch was made in 1963, when most Omega watches had 34.5–35 mm; this model has 36 mm, hence the name Jumbo.
• Case size is 36mm with 45mm from lug to lug.
• Lug width is 19mm with 12.5mm of thickness.
• Using Omega 561 chronometer movement. The movement was recently serviced and running well under +-10s/day.
• Original sunburst dial with some bubbles all over the place. 
• Unpolished sharp case with some scratches. The case is still in good shape with sharp edges.
• Original plexiglass crystal with scratches and an Omega logo at the center.
• No box or paper. Comes an Omega 1068 with 527 endlink, which can fit up to 7.5 inches wrist (19 cm)
• The watch is located in Orange County, CA.