John, the Gigabit film might well be a reincarnation of one of Agfa's Copex Pan copy film developed in special developer. The secret may be in their developer; I doubt a small company has the resource to develop film. 720 lpmm is about doublt that of TP, and on par with Fuji super HR. However this gibabit film may has much finer grain than Fuji Super HR.(posted 8759 days ago)The watch surface on the 1000x enlargement is about 1 cm x 1 cm, meaning the image on negative is about 1/1000 cm or 1/100 mm There are only 2 line pair of details in the watch surface, which translates into only 200 lpmm, that is easily achievable with a good 35mm lens