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.
Timex IRONMAN 8-Lap
Built to Keep Going. Since 1986.
Specifications
Product ID
TW5M54300
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.
Case & Dial
- Case Diameter 39 mm
- Case Height 11 mm
- Watch Weight 31.19 g
- Case Material PC+GF
- Case Color Gray
- Case Finish N/A
- Dial Color N/A
- Dial Markings N/A
- 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 PU
- Band Color Black
- 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
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.
