IWC diving series style: automatic winding, transparent bottom material: 316 steel diamete

IWC diving series style: automatic winding, transparent bottom material: 316 steel diameter: 42mmr equipped with functions: day, month, 24 hours r movement: original imported automatic machinery (zero failure), vibration frequency: 28800 oscillations per hour Power reserve: 36 hours Glass: Sapphire glass Strap: Italian calfskin, 007 knitted fabric strap