Forstner Model O for Omega Seamaster, Aqua Terra, Railmaster, and Planet Ocean

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The Story Forstner's Model O is a traditional oyster-style bracelet that provides a classic yet sporty look to the Omega Seamaster 300M diver series. With its fully brushed finish, taper to 16mm, and Forstner's push-button milled clasp, the bracelet provides an elegant, and extremely comfortable wearing experience. Construction Solid 316L stainless steel, including solid steel end piece. Links removable conveniently via a single-screw system. Milled push-button clasp. Fits 20mm Omega Seamaster 300m diver (not chronograph), both current and former versions. Aqua Terra models with 20mm lug width. Omega Planet Ocean 42mm with 20mm lug width. Omega Railmaster models with 20mm lug width. Please note: There are variations in some Railmaster and Aqua Terra cases depending on the production year. Forstner's end links will securely fit the PO, Railmaster and Aqua Models with 20mm lugs despite these variations, but may not always be perfectly flush with the curvature of the lugs. Product photos show an Aqua Terra model for reference, having a flush fit. However, due to the many variations, expect the fitment to be secure but not be flush by default. For the vintage Seamaster 300m diver (big triangle), choose the bracelet for the pre-2021 Omega Speedmaster. DOES NOT FIT: Seamaster Chronograph, No Time to Die limited edition. Length/Width Tapers from 20mm at the widest bracelet link to 16mm at the clasp. Milled clasp measures approximately 18.5mm wide. Bracelet length is adjustable (via single screw system and micro-adjustment in clasp) from approximately 120mm to 180mm (fits wrists ranging from approximately 6 to 8 inches). Screwdriver included for sizing. Finish Fully brushed finish throughout. Included Spring bars, screwdriver, one pair of end links. Show more