Omega De Ville Prestige Co-Axial (Reference 424.53.40.20.03.001) is a men's or unisex automatic watch, featuring a 39.5mm case crafted from elegant yellow gold. It boasts a striking blue dial, protected by a sapphire crystal, and is water-resistant up to 3 ATM. The timepiece is powered by an automatic movement and secured with a buckle clasp, though the bracelet material is not explicitly stated but typically would be leather for this model.