![Omega Speedmaster Mark IV Ref. 176.009 steel vintage chronograph wristwatch, circa 1973 - Black Bough | Ludlow Omega Speedmaster Mark IV Ref. 176.009 steel vintage chronograph wristwatch, circa 1973 - Black Bough | Ludlow](https://www.blackbough.co.uk/wp-content/uploads/omega-speedmaster-mark-iv-ref-176-009-steel-vintage-chronograph-wristwatch-circa-1973-wwossiv-v21.jpg)
Omega Speedmaster Mark IV Ref. 176.009 steel vintage chronograph wristwatch, circa 1973 - Black Bough | Ludlow
![Omega Speedmaster Mark 4 Ref.176.009 Cal.1040 Vintage 1973 Automatic Mens Watch - Japan Pre-owned Vintage Omega Speedmaster Mark 4 Ref.176.009 Cal.1040 Vintage 1973 Automatic Mens Watch - Japan Pre-owned Vintage](https://cdn11.bigcommerce.com/s-2iwxhck5m7/images/stencil/500x500/products/130296/685010/10_000000016064__25527.1691022193.jpg?c=2)
Omega Speedmaster Mark 4 Ref.176.009 Cal.1040 Vintage 1973 Automatic Mens Watch - Japan Pre-owned Vintage
![WTS] Vintage ('72) Omega Speedmaster Professional Mark IV 176.009 / Unpolished / Original Bracelet / Automatic : r/Watchexchange WTS] Vintage ('72) Omega Speedmaster Professional Mark IV 176.009 / Unpolished / Original Bracelet / Automatic : r/Watchexchange](https://external-preview.redd.it/OZYFA2OVFcj_ur-g6rLUJ2fUKlpFdfd5SG7vhYRF9bU.jpg?auto=webp&s=967f0c9e6ba7aab25d97ab675ffbd48946662db0)
WTS] Vintage ('72) Omega Speedmaster Professional Mark IV 176.009 / Unpolished / Original Bracelet / Automatic : r/Watchexchange
![Omega Speedmaster Mark IV Ref. 176.009 steel vintage chronograph wristwatch, circa 1973 - Black Bough | Ludlow Omega Speedmaster Mark IV Ref. 176.009 steel vintage chronograph wristwatch, circa 1973 - Black Bough | Ludlow](https://www.blackbough.co.uk/wp-content/uploads/omega-speedmaster-mark-iv-ref-176-009-steel-vintage-chronograph-wristwatch-circa-1973-wwossiv-v001.jpg)
Omega Speedmaster Mark IV Ref. 176.009 steel vintage chronograph wristwatch, circa 1973 - Black Bough | Ludlow
![Omega Speedmaster Mark IV, in Stainless Steel, Black Dial with Date, on Stainless Steel Omega Bracelet, Ref. 176.009, Circa: 1970's - European Watch Gallery Omega Speedmaster Mark IV, in Stainless Steel, Black Dial with Date, on Stainless Steel Omega Bracelet, Ref. 176.009, Circa: 1970's - European Watch Gallery](https://www.watchgallery.com.au/wp-content/uploads/2023/09/H95A5853-scaled.jpg)