Full details below taken from Uncle Straps Website

When I released the various options for the Omega Speedmaster, some of my nephews began to make a slight modification to theirs to wear it on their Seamasters. Since so many guys were doing it, I thought, I better make a bracelet that doesn’t need any modification. While I’m at it, they should have solid end-links*.

*These are older pictures with hollow end-links, but the product will have solid ends

Compatibility

Designed to fit: Omega Seamaster 210.30.42.20.04.001

What’s included

One bracelet, one pair of end-links, one pair of spring bars- Watch head not included.

Specs

• Lug width to Buckle: 20mm to 16mm
• Length (mm) : 180mm
• Min length after adjusted : 100mm
• Buckle : Stamped 316L Stainless Steel Pressure Clasp
• Thickness (mm) : 3mm
• Net Weight (gram) : 56
• Finish: Brushed / Polished
• Spring bar diameter: 1.8mm
• Lug end style : Solid Curved End
• Adjustment type : Pins
• Material : 316L Stainless Steel, all solid links

• Wondering if this product will work with your watch? I do my best to outline compatibility details here so you can ensure a good match.

  For bracelets, some of the compatible models listed are submitted from my customers, and therefore I can’t guarantee the fit will be perfect.

  Occasionally these matches require some light modifications to fit correctly. I’ve outlined these steps over on the Bracelet Mods, Tips & Tricks page.