Green dials come and go, but on a 300-meter GMT diver from Longines this one feels like it belongs. The HydroConquest GMT L3.790.4.06.6 pairs a sunray green dial with a polished-and-brushed steel bracelet, so it looks sporty yet still a little dressy. It works whether you are boarding a flight or going out to dinner on arrival.

What sets it apart is the movement. The exclusive Longines L844 caliber adds a 24-hour hand you can set to a second time zone, so home time is always one glance away. A silicon balance spring and non-magnetic parts make it about ten times more resistant to magnetism than the ISO 764 standard asks, which helps around laptops, speakers and airport scanners. The power reserve is around 72 hours.

Despite the dual-time movement, the 41mm case stays a reasonable 12.9mm thick. The H-link steel bracelet has alternating polished and satin finishes that pick up the light in the sunray dial.

Specs: Longines HydroConquest GMT 41mm green, L3.790.4.06.6

• 41mm stainless steel case, 12.9mm height, 21mm lug width
• Unidirectional rotating bezel with ceramic insert
• Sunray green dial, Super-LumiNova hands and indexes, date
• Longines L844 self-winding GMT caliber with silicon balance spring
• Approximately 72 hours of power reserve
• Sapphire crystal; screw-down crown and solid caseback
• Water resistant to 300m (30 bar)
• Stainless steel H-link bracelet with folding clasp

For the traveler who wants something a bit more distinctive than black or blue, this is the HydroConquest GMT to pick.