Related Clues:

• 60 secs.
• 60 sec.
• Lower limit: Abbr.
• 1/60th of an hr.
• Part of r.p.m.: Abbr.
• Score clock abbr.
• Clock div.
• Part of an hr.
• No. before or after a colon
• Part of RPM: Abbr.
• Watch unit: Abbr.
• Not maj.
• Part of a deg.
• Calc. calculation
• Unit of cell phone usage: Abbr.