A two-in-one reference chart that lets you identify battery sizes and spring bar lengths at a glance, without reaching for a caliper every time.
⭐ At a glance
✅ Combines a battery size gauge and a spring bar sizer on one chart
📦 Supplied as a single guide/selector card for the bench
Type of tool: Measuring
✔️ New with tags
🔧 What it does & how to use
This chart is a quick-reference tool for anyone servicing watches, whether a hobbyist changing batteries at home or a professional working through repairs on the bench. Rather than measuring components individually with a caliper, you place the battery or spring bar against the printed outlines on the chart to read off its size directly.
- Battery sizing: Lay the removed battery on the corresponding gauge outlines until you find the matching diameter and thickness, giving you the correct replacement code.
- Spring bar sizing: Lay a spring bar along the ruled/outline sections of the chart to read off its length, helping you pick the right replacement bar for the lug width.
- Keep at hand: Store the chart in your repair kit or tray so it's ready whenever you're re-fitting a battery or strap.
