I asked tonewheeldude on Facebook to please give me the correct measurements. Here's what he said:
"I have an SD5 and an SD7 here in front of me - they are exactly the same size, although the SD7 has a data wheel which sits slightly higher than anything on the SD5. They are roughly 116x13x39cm."
That would be: 45.6 x 5.11 x 15.35 in inches. Very close to what the brochure says: 46 x 5 x 15.6
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DonM