Omega Seamaster Diver 300M in Blue and Brown Ceramic

The Seamaster Diver 300M has been part of Omega’s catalog since 1993, and its wave dial and helium escape valve have carried through changes in color, materials, and movements. These two ceramic versions bring color into the case itself. The blue model pairs its ceramic with titanium, while the brown model uses 18K Sedna Gold to bring out the warmer tones of its dial and case. Both build on combinations Omega has previously used in black ceramic, giving two familiar material pairings a different look within the same dive-watch design.

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Both ceramic cases measure 43.5 mm across, 51.5 mm from lug to lug, and 14.27 mm thick, with 21 mm between the lugs. Each has a unidirectional bezel with a 60-minute diving scale. On the blue reference, a Grade 5 titanium bezel frames the dial and the scale is filled with white enamel, making the scale one of the brightest elements on the watch. The brown reference uses an 18K Sedna Gold bezel and an Omega Ceragold scale, carrying the warmer tone around the perimeter of the case.

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At the back, the blue watch uses a Grade 5 titanium caseback with a sapphire window. The brown watch pairs its sapphire window with brown ceramic.

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Both windows expose the movement, including the rotor and the decorated bridges beneath it, so the different caseback materials frame the same mechanical view.

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A screw-down crown is fitted to each case, with titanium controls on the blue model and Sedna Gold controls on the brown model. Both also retain the collection’s separate helium escape valve. Over the dial, a domed, scratch-resistant sapphire crystal has an antireflective treatment on both sides. Water resistance is rated at up to 300 meters (984 feet). Omega-seamaster-diver-300m-blue-brown-ceramic pic 05 Each dial is made from ceramic in the same color as its case, extending the blue or brown across the face of the watch. A wave pattern runs across both dials, with the blue version using the collection’s larger wave motif. The waves give the broad dial surface a distinct texture within the otherwise closely matched color scheme.

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Both watches use skeletonized hands. The blue reference gives its hands a titanium-colored PVD finish and keeps the remaining dial markings, including the Omega logo, white. On the brown reference, the hands are made of Sedna Gold and the dial markings combine white and gold-colored details. The gold hands carry the tone of the bezel into the center of the dial.

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White Super-LumiNova fills the hands and hour markers on both versions. On the blue dial, the white luminous material sits alongside the white printing, keeping the contrast consistent across the display. On the brown dial, it provides a pale accent against the darker ceramic and the gold tones around it.

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The “Omega Seamaster Diver 300M” (References below) is powered by the self-winding mechanical caliber 8806, with 35 jewels and a frequency of 25,200 vph, or 3.5 Hz. It displays hours, minutes, and seconds and uses a Co-Axial escapement, a free-sprung balance, and a silicon balance spring. The movement winds in both directions and is certified by METAS as a Master Chronometer, with resistance to magnetic fields up to 15,000 gauss. A rhodium-plated rotor and bridges decorated with arabesque Geneva waves finish the movement. Power reserve can last up to 55 hours when fully wound.

Mounted on these watches are curved-end rubber straps in blue and brown, respectively. The curved ends follow the shape of each case between the lugs. The blue strap fastens with a Grade 5 titanium pin buckle, while the brown strap uses a matching brown ceramic pin buckle.