Technical data Analog Movement: Japanese quartz movement case material: Metal housing (diameter/thickness): 1.57/7.5 in Band Material: Leather strap (length/width): 9.06/0.79 in Suitable for wrist circumference: 6.5- 8.26 in Battery (s): 377 x 1 Ultra flat at only 7mm Less is more! A slim watch impresses with its low weight and high wearing comfort. At just 7 mm, the watch is ultra flat and can be worn under tight shirts or jackets without being noticed Read more Extremely soft strap band We use a detailed texture of the strap, leather luster does not fade, we focus on design, more attentive to find the most with the minimalist style of ultra-thin leather strap with. Read more Suitable for all occasions Suitable for all occasionsThis unique casual watch great with any outfit and any occasion, it enables you to easily spice up a normal outfit and add style to your life. It will be a perfect gift for your relatives and friends Stainless steel strap Stainless steel watch band which is soft, durable, breathable and comfort. Safety buckle, you don't have to worry about it falling off 3ATM Daily Waterproof Daily life waterproof, can bear sweat, accidental rain or water splash, but NOT recommended for bathing, swimming, diving and so on. Read more