Get it in writing -- whether it's an estimate or invoice for work performed, it should be detailed and itemized -- stating the charges for each part, labor charges and sales tax. It is not reasonable for you to expect them to name an exact time when they will be there. A 2 to 4 hour time window is reasonable.
A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias (ah-RITH-me-ahs). Arrhythmias are problems with the rate or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm.
For the 2011 Georgian film, see The Watchmaker. For the theological argument, see watchmaker analogy. A modern watchmaker at his workstation; he wears a magnifying loupe to more easily see the small parts of a watch. A watchmaker's lathe in use to prepare a decorative watch component cut from copper. A watchmaker is an artisan who makes and repairs watches.