Most of the Graham reps are actually quite accurate. But few are currently being made - most of the ones shown on the Puretime site have been unavailable for years. Most of the dealers trusted here and other forums (including Puretime, TrustyTime, Perfect Clones) rarely cull models that are out of production. So just because a dealer has something listed doesn't mean they can get it.
Look at Toro's site for ones you can buy new from a TD... the Tech Seal V3 is superb (I own one) and the plain Chronofighters he has for $148 are an incredible value. He is better than most at restricting his website to watches he can get.
Most of the Graham reps have superb AR sapphire crystals, excellent lume, nearly perfect dials and hands, and reliable sec@3 A7750 movements. The cases, bezel, and case back are extremely close to the gen. The lever apparatus is a little wonky on many. Paying big bucks for the gen gets a Swiss ETA 7750 and better lever/guard.
Also keep your eye out for ones being resold by members. Some, like the Scarab and Airwing, are quite rare but some of the other Divers show up somewhat regularly.