About this item:

• Enjoy compliments when wearing this fashionable luxury self-winding dress watch! Also makes excellent gifts for Christmas, Father's Day, Valentine's Day, birthdays, weddings, anniversaries, graduations, job celebrations, etc.
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• Stylish Multifunctional Design: Luxurious sparkling three dimensional Roman numeral 3-hand analog display with day/week calendar functions. Enjoy an imported NH36A movement used in Seiko watches, but with a very stylish OUPINKE design. See-through feature of the back cover demonstrates quality craftsmanship in motion.
• Automatic Mechanical Design: No battery required! Supports self winding via everyday hand motions or manual winding with a 45-hour kinetic energy reserve. With crown pushed in (normal working mode), rotate 40 times clockwise to complete initial winding. Automatic mechanical watches can also last up to 5 times longer than ordinary watches. 
• Tungsten & Stainless Steel: 316L stainless steel case provides superior corrosion resistance compared to grades 304 & 316. Tungsten steel strap provides superior corrosion resistance, durability, and scratch resistance compared to stainless steel straps. The solid tungsten steel strap has a push button butterfly double buckle hidden clasp that makes it easy put on and remove. Strap is adjustable for maximum comfort.
• Synthetic Sapphire Crystal: Synthetic sapphire crystal dial window provides even greater scratch resistance than Hardlex crystal. Synthetic sapphire crystal is the standard for Rolex watches because of its amazing scratch resistance and durability. Mohs level 9 hardness of sapphire crystal is second only to diamond.
• HD Luminous Feature: Any light source charges the luminous display in about 35 seconds so that you can clearly tell time in the dark.
• 50 Meters Water Resistant: Can withstand rain, splashing, cold water showering, and shallow water swimming, but is not suitable for warm/hot water bathing or diving.
• Watch Type: Automatic Mechanical Japanese Movement.
• Model Number: 3171.
• Condition: New.
• Dial Window Diameter: 40 millimeters.
• Case Thickness: 11 millimeters.
• Band Width: 20 millimeters.
• Band Length: 20 centimeters.
• Weight: 135 grams.
• Free Two-Year Warranty.

• Estimated Total Order Processing And Free USPS Delivery Time: 5 to 10 business days.