- Omega
- Speedmaster Trilogy 1957
- 31110393001001
- xxxxxxxxx
- 12/2017
- Steel
- 38
- 6mm
- Black
- Black "Tropical"
- Cal. Omega 1861
- N.O.S. with some stickers
- Full set
- box and original papers
- A 60th Anniversary tribute to the first Chronograph watch with tachymeter scale on the bezel
- limited to 3.557 pieces
- is based on the Omega "Broad Arrow".