This is one case back that you simply don't see everyday. The 105.012-63 was made for circa 6 months only so to find a case back in its own is a rare thing. The condition is excellent showing very minimal wear and no huge gauges out of it from incorrect opening. Asking £2350 - sure its a little pricey but find another. Payment via bank transfer only - I have heaps of references and I'm known worldwide and mod on here so but with confidence.