Free tools

Tools for mechanical watch owners

Quick answers to the questions that come up every week: will it stop, can I set the date, is it keeping good time, and what should the winder be set to?

Power reserve

Will my watch stop?

Pick your movement and when you last wound it. Find out if it's still running on Monday.

Setting the date

Is it safe to set the date?

Enter the time on the hands. We'll tell you if the date mechanism could be damaged.

Accuracy

Watch accuracy calculator

Turn two time checks into seconds per day, and see if it's within spec.

Watch winders

Watch winder TPD settings

Turns per day and direction for 86 movements, from the NH35 to the Rolex 3235.