I think these are the current sizes (please correct if any of these are wrong):
Duetto Classique : 23 x 38.7 mm x 9.4 mm
Classique: 23 mm x 38.7 mm x 7.1mm
Duoface: 26 x 42.2 mm x 9.4mm
Grande Taille: 26 mm x 42.2 mm x 9.4mm
Grande GMT : 29.5 x 46.5 mm x 12mm
Grande Date: 29.3 x 46.5 mm x 12mm
Grande Automatique: 29.3 x 46.5 mm x 12mm
Grande Sun Moon: 29.3 x 46.5 mm x 12mm
Grande Réserve: 29.3 x 46.5 mm x 12mm
Grande Email: 29.3 mm x 46.5 mm x 12mm
à Eclipse: 29.3 mm x 46.5 mm x 12mm
Squadra Hometime : 35 x 50.5 mm x 14 mm
Squadra Chronograph: 35 x 50.5 mm x 14 mm
Squadra World Chronograph Polo Fields : 36.5mm x 53mm x 16.5 mm
Gyrotourbillon 2 : 36 mm x 55 mm x 17.67mm
Triptyque: 37.7 x 55mm x 17.9 mm
And now per the posts above:
976: 30mm x 48.5 x 30 x 9.7mm
986: 31.3mm x 52mm x 11mm
while the XGT case size is 29.25mm x 46.5mm x 12mm
respo