Full details below taken from Uncle Straps Website

While I love wearing my Speedmaster, there was something about the bracelet that just wasn’t right with me. For some reason between the removable links and micro-adjustments I was still unable to achieve the perfect fit. Add to that I am a vintage guy at heart and the stock bracelet just looks too modern to me. So, a friend suggested I make a Beads of Rice for it and I was all over it. It is a heavy, stainless steel bracelet with standard (hollow) end-links. You won’t be disappointed!

Please note – we cannot guarantee compatibility with special edition Speedmaster’s.

What’s included

One bracelet, one pair of end-links, one pair of 2.5mm custom spring bars

Specs

• Lug width to Clasp: 20mm / 18mm
• Length (mm) : 185mm (including end-links)
• Min length after adjusted : 120mm
• Clasp : Milled 316L Stainless Steel 18mm Double Flip-Lock Diver Clasp
• Thickness (mm) : 3.8mm
• Net Weight (gram) : 80grams
• Finish: Brushed metal/Polished sides
• Spring bar diameter: 2.5mm
• Lug end style : Standard (Hollow) Curved End
• Adjustment type : 6 removable links– pin type adjustment (all links are removable)
• Material : 316L Stainless Steel, all solid links (hollow end links)

Compatibility

Designed to fit the Omega Speedmaster, also fits the Seamaster 300

• 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.