So no unsightly over hang or keepers, making the strap visually better! The strap has a 20mm lug width and tapers down to a 18mm.
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Breathable Cowhide Watch Strap for Omega for Seiko Watch Band 18/19/20/21/22/24mm Genuine Leather Wristband Black Clasp Bracelet
Aliexpress UK
Buckle:Stainless Steel Clasp. The clasp is made of stainless steel.
eBay
16mm 18mm 20mm Stainless Steel Watch Buckle for Omega Butterfly Button for Leather Rubber Watchband Deployment Clasp Accessories
Aliexpress UK
Fits any watch with 18mm lugs. Lug Width: 18mm. Solid 316L Stainless Steel. Gold finish. ✔ High-polish gold finish enhances the look of your watch.
eBay
Watch Buckle for Omega 16mm 18mm 20mm Stainless Steel Deployment Clasp for Nylon Rubber Watch Band Folding Butterfly Button
Aliexpress UK
Compatibility: SeaMaster, SpeedMaster, Diver, DeVille, and more. Size: 18mm. Quality: Constructed from premium steel for lasting durability.
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20mm 21mm 19mm 18mm 22mm Quality Natural Rubber Silicone Watch Band for Omega Speedmaster Watch Seamaster Deployment Clasp Strap
Aliexpress UK
> SIZES:16mm, 18mm, 20mm (check end of the strap for size). CLASP IS MADE OF TOP GRADE L316 STEEL. > ANY WARRANTY FOR THIS ITEM?. 12 MONTHS WARRANTY. LET US KNOW.
eBay
21mm Men's Vintage Frosted Leather Watch Strap For Omega Dark Side of the Moon Speedmaster 311.92.44 Deployant Clasp Watchband
Aliexpress UK
SIZE: 16mm; 18mm; 20mm. · Clasp/Buckle Width: 16mm; 18mm; 20mm. · Materials: Stainless Steel. Hello, each of our products has its own characteristics in style design, high quality and low price, high quality and low price, high cost performance.
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16mm 18mm 20mm Stainless Steel Watch Buckle for Omega Leather Rubber Watch Band Deployment Clasp Butterfly Button Accessories
Aliexpress UK
Size: 20mm.
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16/18/20mm Stainless Steel Watch Buckle for Omega Watch Band Clasp Leather Metal Deployment Button Folding Buckles Accessories
Aliexpress UK
Choose from a brushed matte or a polished clasp to suit your watch.
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21mm Retro Suede Leather Watch Strap for Omega Super Series Moon Dark Side 311.92.44 Watchband Folding Clasp Brown Bracelet Men
Aliexpress UK