Certina Ratchet Diver Extension Loose

I have the Certina DS Action Diver Titanuim. The clasp is fitted with a ratchet diver extension. The extension I feel is very loose. If the watch lays just sligtly down to my hand, it easily extends the extension the whole way open without much force if I flex my hand. I.e. it happens all the time which is quite annoying indeed.

Anyone who owns a Certina with this type of clasp, or have a similar clasp? What are your experiences, does the extension stay or is it loose for you as well?

I have sent the watch to Certina, but they returned without doing anything to it. The watch is a couple of months old. 

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Show the inside might help more. My guess is that the ratchet teeth are gunked up. This happens with ratchet wrenches, bicycle shifters. Crud clogs the normally sharp detents.

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The ratchet teeth are quite clean. I can see some wear on the teeth, can it be so that titanium is not a very good material for this type of ratchet as it deforms quite easily?

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I’ve got the same watch, but haven’t had any issues with mine (no yet anyway). Wherever I set the extension is where it stays.

I can close it without too much pressure, but it won’t extend without holding both buttons down. Here’s a pic of mine for comparison.

If it’s not holding in place I would send it back again. You’re still under warranty so I’d ask them to replace it.

Actually been thinking of swapping mine over to a NATO instead.

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Thanks for the input, will ask for a replacement clasp 👍