Try It On
Case Diameter 39mm
Case Diameter 39mm
Try It On
Case Diameter 39mm
Wrist Size (in)
Band Size
The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.
150 - 205mm (5.9 - 8.1in)
Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".
How to choose the right case size
Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.
Wrist Size (in)
Band Size
The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.
150 - 205mm (5.9 - 8.1in)
How to measure your wrist size
Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".
How to choose the right case size
Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.
Delivery, Returns & Warranty
Delivery
Free Standard Shipping on most orders. Fan Shop orders do not qualify for free shipping. Buy two straps get free Standard Shipping.
Returns
Get your refund faster with easy online returns! Mail your items back with our return label within 30 days.
Warranty
Your Timex® watch includes a limited manufacturer’s warranty covering defects in materials and workmanship for a period of one year from the original purchase date.
Add optional protection with Extend in your cart or checkout for coverage against accidental damage and mechanical failure beyond the standard warranty.
Resin Case
Water Resistant to 100 Meters
Stopwatch & Countdown Timer
INDIGLO® Light-Up Watch Dial
Timex IRONMAN 40th Anniversary Edition
-
Resin Case
-
Water Resistant to 100 Meters
-
Stopwatch & Countdown Timer
-
INDIGLO® Light-Up Watch Dial
Celebrating 40 Years of TIMEX® IRONMAN®
Specifications
Product ID
TW5M75900
Quartz Digital Movement
A quartz digital movement uses a battery-powered quartz crystal to keep precise time, displaying it on an easy-to-read digital screen.
Quartz Digital
Tell Time at a Glance
A digital quartz movement uses a battery and a vibrating crystal to keep precise time, displaying it on an easy-to-read digital screen. It’s reliable, accurate, and built for everyday convenience.
Resin Case
This resin case is made from a durable, lightweight synthetic material that’s built to handle everyday wear and impact.
- Case Diameter 39 mm
- Lug-to-Lug Distance 46 mm
- Case Height 10.5 mm
- Case Material Resin
- Case Color Blue
- Case Finish Beadblasted
- Dial Color Digital
- Dial Markings Digital
- Battery Type CR2016
Resin Strap
The resin strap is molded into a single piece for durability and comfort.
- Band / Lug Width 19 mm
- Band Material Resin
- Band Color Blue
- Band Buckle Buckle
Acrylic Crystal
A lightweight plastic polymer with excellent impact resistance and a warm vintage appearance that can be easily polished to remove scuffs.
Acrylic Crystal
Highly impact-resistant
Acrylic lens are a specialised form of plastic akin to Plexiglass and were commonly used in early to mid-20th century watches. It is a softer material that can be more prone to scratches but conversely is very shatter-resistant. Given its softness any scratches though can be buffed out. Acrylic lens are synonymous with vintage-inspired timepieces and thus can be found on our Marlin and Q Timex collections.
Acrylic Crystal
Highly impact-resistant
Mineral Crystal
Enhanced durability
Sapphire Crystal
Scratch-Resistant
Water Resistant to 100 Meters
This watch is suitable for swimming, snorkelling, poolside diving or surfing. It is not suitable for scuba diving. To maintain water resistance, do not press any buttons while underwater.
100m
Water Resistance
This watch is suitable for swimming, snorkelling, poolside diving or surfing. It is not suitable for scuba diving. To maintain water resistance, do not press any buttons while underwater.
30m
Light rain, sweat & splashes.
50m
Short swims.
100m
Swimming, snorkeling & surfing.
200m
Recreational scuba-diving.
300m
Deep-sea exploration.
Stopwatch & Countdown Timer
Equipped with a stopwatch and countdown timer, perfect for measuring and managing your activities.
INDIGLO® Light-Up Watch Dial
Developed by Timex in the early 90s, our INDIGLO® backlight allows you to tell the time in the dark with the push of a button.
Alarm
Equipped with a reliable alarm for timely reminders, ensuring you never miss important moments.
Chronograph Movement
A chronograph movement provides the added functionality of a stopwatch. By using the two pushers, you can start, stop, and reset this function.
Features
Try It On
Case Diameter 39mm
Case Diameter 39mm
Try It On
Case Diameter 39mm
Wrist Size (in)
Band Size
The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.
150 - 205mm (5.9 - 8.1in)
Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".
How to choose the right case size
Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.
Wrist Size (in)
Band Size
The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.
150 - 205mm (5.9 - 8.1in)
How to measure your wrist size
Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".
How to choose the right case size
Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.
