It does remind me of hippeastrum 'gervase', because that one also has red/pink variegated flowers. But gervase is a 'sectored' variegate, and this one is more like a spot-variegated, meaning that the variegation doesn't have clearly marked sectors of the flower that extend to the outside of the flowerpetals, but yours also has random spots of color, and not really clean edges. I'd suggest waiting for another year of flowers, and if it's variegated again, wait for an offset. When it has a good size offset that's rooted, i'd first clean off all the dead material, andcut up the main bulb. 4 to 8 parts will be most likely to give good size offsets and multiple chances. I think it is best to put it in water(in separate cups, to be sure if there occurs rot, so not all parts will be lost at once), because the inner parts of the bulb will callous nicely instead of drying up partially first. IMPORTANT: if using the water method, you should refresh the water every few days, and clean the cup, because the hippeastrums will put out some kind of sticky slippery stuff that will stick to the cup, and it should be removed because it is (dead) organic material and could make it rot faster. It also smells pretty bad. Also the basal plate will form callous. Once callous is formed i would plant it in good draining soil, and keep it just a little damp, with a good watering once in a while to encourage root formation, and bury it just a little deeper than only the basal plate. After about 3 months there will be numerous new small bulbs. If that has happened, just give the whole thing a pot that suits the rootball and the bulbpart, and let it grow. The basal plate will shrivel away when the little bulbs have sucked all the energy from it and have roots themselves. By then they usually also have leafs. If the basal plate has shriveled up and the little bulbs are separate, you can pot them up individually.
