Aftermarket Rubber Strap for Omega Seamaster 300/Planet Ocean – 20mm/22mm

Description

The Seamaster 300 and Planet Ocean occupy complementary positions in Omega’s dive watch canon: one rooted in the heritage of professional diving, the other in the technical ambitions of deep-water exploration. Both wear silicone rubber as naturally as any dive watch alive. The Omega Seamaster 300 / Planet Ocean Silicone Rubber Strap is built for both: available in 20mm and 22mm across their reference range, in a near-symmetrical 105mm + 102mm configuration that distributes the watch’s weight evenly across the wrist, secured by a folding buckle built for daily active use. The strap for two of Omega’s most seriously worn dive references.

Silicone Construction. Near-Symmetrical Fit. Two Omega References Covered.

• Silicone rubber — the material that belongs on a dive watch — silicone is water-resistant without qualification, salt-resistant without degradation, and temperature-stable across the range from cold open-water dives to surface heat that makes a metal bracelet uncomfortable. It dries instantly, stays flexible at depth, and holds its colour and profile under UV exposure across seasons of outdoor use. For the Seamaster 300 and Planet Ocean, it is not an alternative to the original bracelet — it is the configuration for the watch in its element.
• 20mm and 22mm — both Omega dive reference lug widths covered — the Seamaster 300 and Planet Ocean span both lug widths across their reference ranges. With 20mm and 22mm available, both are served correctly rather than approximated from a single width, each seating flush at the case without gap or overhang.
• 105mm + 102mm — near-symmetrical for balanced wrist wear — this is the most balanced strap configuration in the catalogue: a 3mm difference between the long and short sections rather than the typical 40-50mm asymmetry. The near-equal lengths distribute the watch’s weight more evenly across the wrist, reduce the lateral pull that a heavily asymmetric strap creates across long active wear, and position the folding buckle consistently on the underside regardless of wrist size. On a dive watch worn through sustained physical activity, that balance is a genuine comfort advantage.
• Folding buckle — the secure closure for an active dive strap — a folding buckle on a dive watch strap does two jobs: it holds the watch more securely than a pin buckle under physical activity, and its positive locking action gives a tactile confirmation that the watch is correctly secured before entering the water. On the Seamaster 300 and Planet Ocean, both of which carry serious dive credentials, a folding buckle is the appropriate choice.

For the Seamaster 300 and Planet Ocean That Goes in the Water.

These are not watches that were designed to stay dry. The Seamaster 300’s 300m rating and the Planet Ocean’s 600m credentials are engineering statements about intended use, not theoretical limits. A silicone strap with a folding buckle and near-symmetrical proportions is the configuration that supports that use — comfortable through long submersions, secure through physical activity, and indifferent to the saltwater, chlorine, and UV that would age any other strap material across a summer of serious diving.

This strap is the right choice for:

• Active divers and swimmers wearing the Seamaster 300 or Planet Ocean in the conditions both watches were rated for — where silicone’s water resistance and quick-drying properties are requirements, not features.
• Symmetry-preference wearers who find the standard long/short asymmetry uncomfortable across extended activity and want the more balanced fit the 105+102mm configuration provides.
• Both-reference owners who own a Seamaster 300 and a Planet Ocean and want a single correctly sized silicone strap that fits both references across their shared lug widths.
• Bracelet rotators who keep the original Omega bracelet for formal and casual contexts and reach for silicone when the watch goes into active or aquatic use.

Specifications

Silicone, balanced fit, two Omega dive references. Add to cart and take it in the water.