Hello, the model of this watch is 7 1-2639, which belongs to men's mechanical watch. It was a product from the 1980s to the early 1990s, and it has been discontinued for a long time.

Water Resistant stands for waterproof coefficient and has waterproof effect on daily life. Can be used in the case of washing hands, washing vegetables and other slight dripping water, and can prevent sweating, dripping water and getting wet in daily life.

Stainless steel stands for stainless steel, please understand that stainless steel is a metal that is not easy to rust. The main component of stainless steel is iron. Adding chromium and nickel to iron has antirust properties and is stainless steel.

4-063554 represents the case number.

2 0 4 4 3 1 1 6 stands for factory number.

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