The DB28XP – “XP” is short for “extra plat”, French for “extra flat” * We have graded this watch to be 95% - there are minor scuffs or some wear on strap The watch measures 43 mm and just 7.3 mm high. Notably, the DB28XP is actually slightly larger than the original DB28 in diameter, at 43 mm against 42.6 mm, but the difference is impossible to discern. The case is a full 2 mm thinner, something that is obvious right away. The construction of the case is also similar to the original, as is the first-rate finishing. All surfaces of the case are mirror polished, leaving no imperfections visible. It includes several patented inventions: a balance wheel made of blued titanium with white gold weights, a hairspring with flat terminal curve, and the triple pare-chute shock absorber for the balance. And like many of De Bethune’s other movements, it has a silicon escape wheel.