The classic 7-inch brass one-hand divider, opened and closed with a single hand while you work the chart.

Limited lifetime warranty from Weems & Plath on the movement, for as long as you own the instrument. View the warranty terms (PDF)
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Every seasoned navigator keeps a pair of these on the chart table. The 7-inch (178 mm) Weems & Plath one-hand divider has brass handles, tapered sides and polished stainless steel points.
Measuring distance on the chart
Span the two positions, then transfer the divider to the latitude scale at the chart's edge, where one minute equals one nautical mile. Squeeze the bow to open, press the legs together to close, all with one hand.
The 7-inch size suits smaller chart tables and large-scale charts; an 8-inch version covers longer distances.
Key features
- 7 in (178 mm)
- Brass handles
- Polished stainless steel points
- One-handed operation
Specifications
| Feature | Detail |
|---|---|
| Brand | Weems & Plath |
| Type | One-hand divider |
| Length | 178 mm (7 in) |
| Material | Brass, stainless steel points |
| Warranty | Weems & Plath Limited Lifetime Warranty |
| Weems & Plath item number | 170 |
| EAN | 0721002001702 |
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Explore our dividers and compasses and parallel rules and plotters, or see the full range on our Weems & Plath brand page.
Founded in Annapolis in 1928 by navigator Captain Philip Van Horn Weems, Weems & Plath remains a byword for dependable instruments. Order with confidence from Shipsclocks.com.
Frequently asked questions
7 in or 8 in?
7 in for compact chart tables; 8 in reaches further on small-scale charts.
- Material
- Brass
- Dimensions
- 178 mm
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