Combine curry, mustard, honey, brown sugar, vinegar and sesame oil in a glass bowl. Season with salt and pepper. Combine with chicken wings and marinate for 1 hour.
Prepare a fire in the grill and position the oiled grill rack 4-6 inches (10-15 cm) above the fire. Arrange the wings on the rack.
Grill, turning frequently and brushing with the marinade until cooked.