Measure your wrist; 38mm to 42mm is the "sweet spot" for most men.
First, there was the Movement. The shopkeeper pointed to a sleek, thin piece. "Quartz," he whispered. "Battery-powered. It is the most accurate thing in this room, yet it has no soul." Then he gestured to the heavier, intricate Chronograph. "Mechanical. Hundreds of tiny gears working in harmony. It loses a few seconds a month, but it lives because you wind it. It’s a conversation between you and the physics of time."
50m is fine for rain; 100m for swimming; 200m+ for diving.
Choose Quartz for low maintenance or Automatic/Manual for craftsmanship.