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Our 2.5mm diameter 316L marine stainless steel spring bars are available in watch strap widths ranging from 16mm to 30mm , including intermediate sizes like 19mm and 21mm , to fit all watch straps . The width indicated corresponds to the spacing between the lugs of the watch (called “lug spacing”). To measure correctly, it is advisable to use a steel caliper for greater precision.
What is a spring bar?
The spring bar is a small metal rod that connects the watch strap to the watch case . Placed between the lugs, it holds the watch strap firmly while allowing it to be easily replaced.
How to choose the right width?
Each lug size corresponds to the distance between the watch lugs , i.e. the exact width of the compatible watch strap .
Available widths (16 mm to 30 mm)
- 16 mm – for small, thin watch straps .
- 18 mm – common for classic watches and dress watch straps .
- 19 mm – often used on certain prestigious Swiss brands.
- 20 mm – a very common standard size for many modern watch straps .
- 21 mm – intermediate width common on high-end watches.
- 22 mm – ideal for sports or diving watch straps .
- 24 mm – for sturdy watches and wide watch straps .
- 26mm – some XL watches require this width.
- 28 mm – rare, for extra-wide watch straps .
- 30 mm – exceptional, for imposing watches.
How to measure the horn gap?
To choose the correct width:
- Measure the inside distance between the two lugs of the watch.
- Use a steel caliper for accuracy.
- Example: If you find 21mm, select 21mm spring bars to fit your watch strap .
Why choose our Ø 2.5 mm spring bars?
- Strength : 2.5 mm reinforced diameter for robust watches.
- Safety : reliable attachment of the watch strap , limits the risk of detachment.
- Versatility : Widths available from 16mm to 30mm, including 19 and 21mm.
FAQ – Spring bars Ø 2.5 mm
What is the difference between Ø 1.5 mm and Ø 2.5 mm?
The Ø 2.5 mm bars are thicker and stronger, suitable for heavy or sports watches. The Ø 1.5 mm are thinner and suitable for classic or vintage watch straps .
Do I need to replace my spring bars every time I change my strap?
Yes, it is recommended to change the spring bars when replacing the watch strap to prevent wear and ensure a secure fit.
Can I install the spring bars myself?
Yes, installation is simple with a push rod tool. This makes it easy to change a watch strap without damaging the lugs.
