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There isn't really any singularly correct or original bracelet for the watch; they were purchased as a watch head, and the bracelet or strap was chosen according to the taste of the purchaser. A cursory Google image search shows that most of these are on leather straps (by far the most common option across all Omega models were leather straps).
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I think that either of the 'beads of rice' style bracelets would work with it too. Perhaps you'd consider that as a more affordable bracelet option?
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