The Bench Spring Bar Assortment

What it is

The Bench Spring Bar Assortment is a sorted supply of stainless steel spring bars for attaching watch bands and straps to a watch case. Every bar is a double flange type, the standard shape that seats into drilled or undrilled lugs and holds a strap end link in place. The bars arrive sorted by length, so you can find the size you need without measuring each one.

Stainless steel keeps the bars firm under spring tension and resists rust in normal indoor use. This is a bench supply, not a single replacement pair. It suits anyone who swaps straps often, keeps a small repair drawer, or maintains more than one watch.

Sizes and pack counts

Two diameter options are available. Pick the diameter that matches your watch case and strap hardware.

Both sets cover the same length range. The difference is bar thickness and piece count. Thicker bars suit heavier straps and larger cases. Thinner bars fit narrower lug holes and lighter bands.

Lengths step through the common sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 and 25 mm. That covers most lug widths you will meet on everyday watches, from small vintage cases up to larger dive and field models.

How to fit and use it

Measure your lug width first. The gap between the lugs, in millimeters, is the bar length you need. A 20 mm lug takes a 20 mm bar. When you are between sizes, choose the shorter bar only if the lug holes are shallow, otherwise stay with the measured size.

Check the lug hole diameter before you pick a set. If a 1.8 mm bar will not pass through the hole, use the 1.5 mm set. If the hole is wide and the strap is heavy, the 1.8 mm bar gives a more solid hold.

To fit a bar, slide one end into a lug hole, press the other end down with a spring bar tool, and seat it into the opposite hole. A link removal tool helps when you also need to size a metal bracelet. Work on a clean surface so small bars do not roll away.

Keep the kit sorted by length. A small parts box or a labeled tray makes the next strap change quick. Test each bar with a gentle pull after fitting to confirm both ends are seated.

Care

Wipe the bars clean with a dry cloth after handling. Keep the kit away from water and store it in a dry place. Moisture left on steel over time can dull the finish and weaken the spring. Replace any bar that feels soft, bent, or slow to spring back.