41 hour power reserve (without any wrist winding). Hacking/Stopping-seconds feature, which allows for more precise time setting by stopping the motion of the seconds hand while the minute, hour, and GMT hands are being set. Extensive track record of reliability. The case of the Mark III GMT is milled from stainless steel and features scratch-resistant sapphire front and caseback crystals.
The case has a diameter of 38 mm, a lug-width of 19 mm, a lug-to-lug length of 45 mm, and a thickness of 12.75 mm. The caseback features a laser-engraved timezone scale, which is helpful for setting the second timezone function.This is also a tribute to the first Höglund and Sons model which had the same feature and features Minneapolis in bold in place of Chicago to honor our hometown. All watches will include both a blue cloth pin buckle strap and a steel mesh bracelet.
The crown is signed with an H. The watch features Swiss Super-Luminova on all hands and indices, offering a significant improvement from previous Höglund & Sons models. All hour indices are applied rather than painted and the dial has a glossy finish with rich text coloration for maximum visibility. Sapphire front and caseback crystals. Seiko NH34 automatic GMT movement. Frequency/vibrations per hour: 21,600 bph.