Apple watch ultra ocean band extension

Does anyone have the ocean band extension and can help measure the length of it? Need to wear it over a drysuit and not sure if the extension is long enough. My current dive computer strap measures at 2.5 inches for the shorter half and 9.5 inches for the longer half.

Apple Watch Ultra 49mm MIDNIGHT Ocean Band Extension, One Size XL

Apple Watch Band - Ocean Band (49mm) - Midnight - Extension : Electronics

Apple Watch Ultra Ocean Extension Issue

Apple Watch 49mm Yellow Ocean Band Extension

Apple Ocean Band Extension

Lost clamp/buckle for Apple Watch Ultra Ocean band - how to replace? : r/AppleWatch

49mm White Ocean Band Extension - Apple (CA)

How to use the Ocean Band with your Apple Watch

Buy Apple Watch 49mm Yellow Ocean Band Extension Online at Low Prices in India