Patek Philippe Calatrava Mens 3919J 40mm Leather Strap White Dial

Band Material: Leather.A leather band is used for the watch, which can show your good taste and social status.

Watch Case: 316L. The material in this case comes from 316L. For daily seawater corrosion, 316L steel is completely sufficient.

Case Back: Transparent. The transparent back cover allows you to use it for a longer period of time and keep the watch for a long time.

Crystal: Sapphire Crystal. Sapphire glass has a special anti-reflective coating that minimizes light reflection and provides scratch resistance without affecting its brightness. Sapphire crystal is a highly transparent crystal that can be used to make optical lenses, diffractive optical elements, and filters. Tips: The A Replica/Quartz version is applied with mineral glass instead of sapphire.

Dial Markers: Roman Numeral. The Roman numeral in a watch can are used as dial markers instead of usual index to indicate the time.

Bezel Material: Stainless Steel. The watch uses a stainless steel bezel, which a unique structure that makes it an excellent choice for watches. The material can resist scratches, abrasions and indentation. This bezel material is the most resistant to heat and cold of all materials used in watchmaking.

Clasp: Deployment. The clasp of the watch allows the user to fold it into several positions or angles for unique use.