Longines Admiral Chronograph GMT L3.670.4.56.0

It sits between the two halves of the Admiral line. The Admiral Chronograph, such as the black-dial L3.666.4.56.6, shares the 42 mm steel case, black dial, stick hands and stick-and-dot markers, but has no travel function. The Admiral GMT L3.668.4.56.6 keeps the black dial and steel case and reads the second time zone off a fixed 24-hour bezel instead of carrying a chronograph. For a ceramic case, the Admiral Chronograph Ceramic L3.667.4.06.7 pairs the tachymeter bezel with a grey dial.

A sapphire crystal covers the dial, and the lugs take a 21 mm strap.