Swiss Omega Classic Butterfly Series, whether it is genuine or re-enacted, is always the evergreen top-level workmanship in formal business watches. The case is polished and comparable to the genuine one. The diameter and thickness are 39.5X0.98mm consistent with the genuine one. The movement adopts imported original stabilizer. The core must be the strongest version in the boutique market, which is the first choice for business people in formal wear.