NF9171 model, which has the following key features: Style and Movement: • Brand: NAVIFORCE • Style: Sport / Military / Fashion Casual • Movement: Quartz Analog-Digital (Dual Display) • It uses both traditional analog hands (quartz movement) and digital displays (LED) for timekeeping. Case and Strap: • Material: Generally features a stainless steel band and an alloy/stainless steel case. • Dial Color: The main dial color is blue with yellow accents in the digital display areas. • Crystal: Typically uses Hardlex hardened mineral glass for durability and scratch resistance. • Bezel/Dial Features: It has a prominent bezel with Tachymeter markings (60 to 400). • Water Resistance: Usually rated at 3 BAR (30M), meaning it is suitable for everyday splashes, hand-washing, and rain, but generally not for swimming or diving. • Clasp: Often a Folding Clasp with Safety. • Size (Approximate): • Dial Diameter: \approx 45 \text{ mm} • Case Thickness: \approx 17.5 \text{ mm} Functions (Complications): • Dual Time Display: Shows both analog and digital time. • Digital Functions: • Time/Date: Digital display for hours, minutes, seconds, date, day of the week, and sometimes the year. • Chronograph/Stop Watch • Alarm • LED Backlight: The small image inset shows the watch with a bright backlight for reading in the dark. • Luminous Hands: The analog hands are often luminous to glow in the dark.