Casio W737HX Series | Men’s Digital Watch | Black/XL Strap

Product Overview

The Casio W737HX Series is a rugged, feature-rich men’s digital watch engineered for durability, precision, and everyday practicality. Designed with an emphasis on reliability and performance, this timepiece features a high-contrast digital display housed in a robust case and paired with a comfortable black XL resin strap—ideal for larger wrists or those who prefer a bold, secure fit. Whether you’re training for a race, managing a busy schedule, or exploring the outdoors, the W737HX delivers essential tools in a compact, dependable package. Its combination of advanced functionality and long-term resilience makes it a smart choice for athletes, travelers, professionals, and anyone who values a watch that works as hard as they do.

Built to withstand the demands of active lifestyles, this watch integrates multiple timekeeping functions with intuitive controls and a user-friendly interface. From precise timing to silent alerts, every feature is designed to support real-world use without unnecessary complexity. With a 10-year battery life and 100-meter water resistance, it’s built to last—and keep up—through years of daily wear.

Key Features

• 1/100 Second Stopwatch – Capture split times and measure elapsed duration with accuracy down to one-hundredth of a second. With a 24-hour capacity, it’s perfect for tracking workouts, sports drills, or any timed activity where precision matters.
• Countdown Timer (Up to 24 Hours) – Set custom countdowns for workouts, cooking, study sessions, or rest intervals. The audible alert ensures you stay on schedule without needing to constantly check the display.
• Super Illuminator LED Backlight – Activate the high-brightness LED with a simple button press to illuminate the entire digital display instantly. Whether you’re in a dimly lit room, underwater, or out on a night run, time and data remain clearly visible.
• 100 Meter Water Resistance (330 Feet) – Rated for immersion up to 100 meters, this watch is suitable for swimming, snorkeling, and everyday exposure to rain or splashes. It’s not intended for scuba diving or high-speed water sports, but it handles most aquatic activities with ease.
• Daily Alarm & Vibration Alarm – Choose between a traditional audible alarm or a discreet vibration alert. The vibration function is especially useful in quiet environments like meetings, classrooms, or during sleep, ensuring you’re notified without disturbing others.
• Auto Calendar – Automatically adjusts for varying month lengths and leap years, eliminating the need for manual date corrections. Once set, it keeps accurate calendar information for years.
• Dual Time Display – Monitor two different time zones simultaneously—ideal for frequent travelers, remote workers, or anyone coordinating across regions. Switch between home and destination time with ease.
• 10-Year Battery Life – Powered by a single lithium ion battery (included), the watch is designed to operate reliably for up to a decade under normal use. This minimizes maintenance and ensures long-term dependability without frequent replacements.

Technical Specifications

• Model Number: W737HX-1AV
• Department: Men’s
• Display Type: Digital
• Strap Material: Black XL Resin Strap
• Water Resistance: 100 meters (330 feet)
• Battery Type: 1 Lithium Ion (included)
• Battery Life: Up to 10 years
• Stopwatch Resolution: 1/100 second (24-hour capacity)
• Countdown Timer Range: Up to 24 hours
• Backlight: Super Illuminator LED
• Alarm Functions: Daily alarm, vibration alarm
• Additional Features: Auto calendar, dual time
• Product Dimensions: 5 x 7 x 5 inches
• Weight: 5.29 ounces
• ASIN: B09XX2P1QD
• Date First Available: April 13, 2022
• Manufacturer: Casio

Benefits & Use Cases

The Casio W737HX excels in real-world scenarios where functionality and durability are essential. Its 100-meter water resistance allows for worry-free use during swimming, snorkeling, or sudden downpours, while the lightweight design and XL strap ensure a secure, comfortable fit throughout the day. Athletes and fitness enthusiasts will appreciate the 1/100-second stopwatch and 24-hour countdown timer for tracking intervals, rest periods, or race times. The vibration alarm offers a discreet alternative to sound, making it ideal for professionals or students who need silent reminders.

Travelers benefit from the dual time function, enabling easy coordination between home and destination time zones. The Super Illuminator LED ensures visibility in any lighting condition—whether you’re checking the time during a pre-dawn run or underwater while snorkeling. With a decade-long battery life, the watch reduces the hassle of replacements and maintenance, making it a reliable companion for years. The auto calendar further enhances convenience by automatically adjusting for leap years and varying month lengths.

Important Notes

This watch is not suitable for scuba diving or high-velocity water sports. While it is water-resistant up to 100 meters, prolonged exposure to saltwater should be followed by a rinse with fresh water to preserve performance and longevity. The pre-installed lithium battery is designed for extended use, but replacement may be necessary after the 10-year period depending on usage patterns. For detailed warranty information, visit the official Casio support page. The product includes the watch only; no additional accessories are provided. Always refer to the official user manual for proper operation, care instructions, and safety guidelines.