Go with the Sinn, I can't think of any brand that gives you more engineering, design, durability for the money. I have one of the 757 Bavarian Fliegerstaffel limited editions, and it is literally gorgeous and indestructible. Of course it is not an in house movement, just a standard 7750, but at least we know that movement will last, and it is well protected by a tegimented steel case. You'll love your 857, and a dual time zone UTC complication is really cool. Good Luck!