Related Clues:

• Vigil
• 'I'll show you...'
• Keep tabs on
• Timer
• 'Let me demonstrate …'
• Sentry's stint
• Sentry's duty
• Enjoy a TV show
• It may be watched at work
• Fob contents
• Word with body or time
• People watch its hands
• Timepiece
• Common retirement gift
• Wrist timer