Apple Watch Ultra Ocean Band Extension (49mm) - Translucent Black (Natural Titanium)
Apple Watch Ultra Ocean Band Extension (49mm) - Translucent Black (Black Titanium)
Apple Watch Ultra Ocean Band Extension (49mm) - Translucent Black (Black Titanium) - alternate view 1
Apple Watch Ultra Ocean Band Extension (49mm) - Translucent Black (Black Titanium) - alternate view 2

Vendor:Apple

Apple Ocean Band Extension for Apple Watch Ultra 49mm

Color: Translucent Black
Case Finish: Natural Titanium
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Apple · Apple Watch Ultra · Ocean Band Extension

Apple Ocean Band Extension for Apple Watch Ultra 49mm

Made from the same high-performance silicone as the Ocean Band, this band extension lengthens the 49mm Ocean Band by an additional 50 millimeters — perfect if you need extra length to wear the band over your wetsuit.

  • Genuine Apple
  • 49mm · Apple Watch Ultra
  • Adds 50mm
  • High-Performance Silicone
  • Extra Titanium Loop Included
  • Use with Ocean Band
  • Apple 1-Year Warranty

Adds 50 Millimeters

Lengthens the 49mm Ocean Band by an additional 50mm — the extra reach you need for drysuits and thick winter wetsuits.

Same Silicone

Molded from the same high-performance silicone with the same tubular geometry, so it stretches, flexes, and looks exactly like your Ocean Band.

Extra Titanium Loop

Comes with an extra adjustable, corrosion-resistant titanium loop which you can place in any tube to tuck the excess band into.

Made for Wetsuits

Designed to be used together with the regular Ocean Band — in matching colors and hardware finishes for a seamless look.

Technical Specifications

BrandApple
Band FamilyOcean Band Extension (Apple Watch Ultra)
MaterialHigh-performance silicone
Watch Size49mm
Band SizeOne Size (Fits Most) · adds 50mm of length
ColorsTranslucent Black · Translucent Kelp · Translucent Grey
Case FinishNatural Titanium · Black Titanium hardware
CompatibilityDesigned for Apple Watch Ultra Ocean Band · cases 44mm, 45mm, 46mm and 49mm
In the BoxOne Ocean Band extension · One adjustable loop
Part NumbersEach size and color combination carries its own Apple part number, shown as the SKU of the selected variant
WarrantyApple official 1-year limited warranty

Frequently Asked Questions

Which Apple Watch models does this band fit?
It is designed for Apple Watch Ultra (49mm case). Per Apple's official compatibility, 49mm bands fit Apple Watch models with 44mm, 45mm, 46mm and 49mm cases.
Can I use the extension on its own?
No — per Apple, this extension must be used with the regular Ocean Band. It attaches to the band to add 50mm of length for wear over a wetsuit.
Is it genuine Apple?
Yes — 100% genuine Apple Watch Ocean Band Extension, supplied under official Apple part numbers (the SKU shown for your selected variant) and covered by Apple's official 1-year limited warranty.

Apple · Ocean Band Extension · Go Deeper