Collection: Jack Mason Strat-o-timer GMT

The Strat-o-timer GMT is the travel watch in the Jack Mason lineup, and the model that best shows what the brand is trying to do at this price. It runs the Miyota 9075, a true-GMT caliber — meaning the local hour hand jumps independently in one-hour steps while the 24-hour hand keeps home time, so you can cross a time zone without stopping the watch. That is the configuration frequent travelers actually want, and it is uncommon under $1,500.

The case is 316L stainless steel with a hardness coating, 40mm across (47mm lug to lug) or 42mm (49mm lug to lug), fitted with a rotating 24-hour bezel and a sapphire crystal. Water resistance is 200 meters, and the power reserve is 42 hours. Every watch is assembled in the United States by Jack Mason's own watchmakers in Dallas and hand-regulated before it ships.

King Jewelers carries the 40mm in Dark Night, Bluebonnet, Magnolia, and Espresso, and the 42mm in Americana and Dark Night, all on the seven-link steel bracelet.

A travel watch built around a true-GMT movement

The Strat-o-timer is Jack Mason's answer to the traveler's watch, and the model that best marks the brand's move upmarket. Jack Mason was founded in Dallas in 2015 on accessible, design-led sport watches; over the following years it shifted steadily toward mechanical calibers, in-house assembly, and specification that competes well above its price. The Strat-o-timer GMT is where that shift is clearest.

Why the movement matters

The watch runs the Miyota 9075, a true-GMT (or 'flyer') caliber. In this configuration the local hour hand jumps independently in one-hour increments while the 24-hour hand keeps home time, so crossing a time zone takes seconds and never interrupts the running seconds. The alternative found in most watches at this price is a caller GMT, where the 24-hour hand is the one that moves — useful for tracking a distant office, less useful when you are the one flying. Under $1,500, a true GMT is still uncommon.

Built in the United States

Every Strat-o-timer is designed in Dallas and assembled in the United States by Jack Mason's own watchmakers, with each movement hand-regulated before it ships. The company's stated ambition is to help re-establish American watchmaking, which largely disappeared in the decades after the Great Depression.

The specification

316L stainless steel case in 40 x 47mm or 42 x 49mm, rotating 24-hour bezel, sapphire crystal with hardness coating, 200 meters of water resistance, 42-hour power reserve, seven-link steel bracelet. Colorways take their names from the American landscape: Bluebonnet, Magnolia, Dark Night, Espresso, Americana.

At King Jewelers

King Jewelers is an authorized Jack Mason retailer, carrying the Strat-o-timer GMT in 40mm and 42mm, backed by Jack Mason's five-year warranty. Every purchase includes free shipping, and our team can help you compare sizes in person at our Green Hills showroom in Nashville or online at kingjewelers.com.

Strat-o-timer GMT 40mm — 40 x 47mm 316L stainless steel, 7mm crown, Miyota 9075, 42-hour power reserve, 200m. Available in Dark Night (black dial), Bluebonnet (blue dial), Magnolia (green dial), and Espresso (black dial, brown-and-black bezel).

Strat-o-timer GMT 42mm — 42 x 49mm 316L stainless steel, 7.5mm crown, same Miyota 9075 caliber and 200m water resistance in a larger case. Available in Americana and Dark Night.

For the same movement in a lighter case, see the Strat-o-timer Titanium Diver GMT.

Jack Mason watches carry a five-year warranty from the date of purchase covering manufacturing defects under normal everyday use. It excludes accidental damage, everyday scratches, water damage where the crown was left open, leather straps, and unauthorized repairs. King Jewelers is an authorized retailer, so your warranty is valid.