Related Clues:

• The end, to Aristotle
• The last watch you'll ever need?
• The end?
• First watch on the moon
• Final Greek letter
• "Phi, chi, psi" follower
• Letter on some Swiss watches
• Resistance symbol
• "Animal House" frat man
• Greek alphabet ender
• Letter after 32-Down
• Swiss watch
• Maker of the V10K, the world's hardest watch
• Letter after 16-Across
• Tag Heuer alternative