I was debating on purchasing a used Citizen 2100 on ebay with the mineral crystal but when I found out the Citizen was relaunching the 2100 with an anti-reflective sapphire crystal, I had to have it. The 2100 is a classic design that wears very well even though it is a 44mm diameter watch. It's not too top heavy and weighs in at only 124 grms with 2 links removed. I suggest taking advantage of the free sizing because the pin and collar link system is not for the novice. The 2100 is a hand-assembled solar-powered mechanical-quartz movement which means it always has the correct time that never needs winding, and the second had sweeps when the mechanical chronograph is engaged. In my opinion, this is the perfect blend of technology, design, and beauty. Great job Citizen always a cut above.
Great watch so far. I have only had it for about a week, but so far I really like it. Love the look, the fit and the fact that it doesn't have batteries. Time will tell of course but so far so great.