The cost of a Rotary 17 jewel women's watch can vary depending on the model, materials, and condition. Generally, new models range from around $100 to $300, while vintage or limited editions may be priced higher. For specific pricing, it's best to check with retailers or online marketplaces.
Clarify
In 1858 it had not been invented, so the cost was zero.
About $2.00 at Jewel Osco
30 dollars
Ford Escorts use an inline 4 cylinder overhead cam engine, not a rotary engine.
Unfortunately, the answer to that question is difficult to come by without knowing the location and use of the rotary couplings. The answer could be anywhere from $200-$2000. Please specify use for rotary couplings.
Mechanics in NZ who work on Rotaries are currently on holiday.
£25 with a single jewel, £30 with a double.
Regency 17 jewels
Rotary actuators average around $100 to replace. They are important because they move the read/write head to the proper data track.
The jewel bearings inside a watch are quite expensive only because of the cost of performing the maintenance and repair required to replace them. They are, otherwise, not particularly valuable.
Sorry justin, you are already a woman