Features: Slap-up LED watch, binary binary time mode Energy saving, environmental protection and stylish A good gift to give business partners, families and friends Specifications: Item Type: Wristwatches Watchband Material: Stainless steel Dial Window Material Type: Glass Dial Material Type: Stainless steel Movement: Quartz Men's Style: Mirror Size: 2.9*1.5cm (about 11/16*9/16inch) Case Size: 3.0*5.5cm (about 11/16*21/8inch) Case Thickness: 1.2cm (about 3/8inch) Band Length: 23.0cm (about 9 inch) Band Width: 2.4cm (about 7/8 inch) Weight : 130g Band adjustable: Yes Women's Style: Mirror Size: 2.0*1.3cm (about 3/4*1/2 inch) Case Size: 2.2*4.5cm (about 7/8*13/4inch) Case Thickness: 1.0cm (about 3/8inch) Band Length: 20.0cm (about 77/8inch) Band Width: 2.0cm (about 3/4inch) Weight : 90g Band adjustable: Yes Style: Casual Waterproof: Not for swimming Case Shape: Rectangle Color: Black/silver Notes: 1. Please forgive 2-3% errors for measuring by hand, and be sure you never mind it before you order. 2. As different positions, the watch may have chromatic aberration. Instruction: 1. Press and hold button B about 4 seconds. It will dispaly time. The left line (means hours) LED will flash and press button A to increase hours, and the "AM" LED will light while it is AM. 2. Press button B again and the upper 5 LED of right line (means 10-50 minutes) will flash (maybe you can't see flash because of no LED lighting) and press button A to increase light of the LED. 3. Press button B again and the lower 9 LED of right line (means 01-09 minutes) will flash (maybe you can't see flash because of no LED lighting) and press button A to increase light of the LED. 4. Please look at the paper instruction to get more details of setting dates and reading time.