Dezeen promotion: Swiss watchmakers Tudor present their new Grantour Chrono Fly-Back model. 

The 42mm watch features an instant reset with red markings and styling inspired by motorsports.

It comes in steel, or steel with 18ct pink gold, and a steel link bracelet or leather strap.

Watch a movie about the design here.

The information below is from Tudor:

TUDOR GRANTOUR

The new watches for 2011 are the fruit of a studied stylistic redefinition of the brand. They are the perfect embodiment of its resolutely modern and sophisticated identity, which is founded on a subtle balance between style and technical performance. TUDOR has become an icon of retro chic style, a seductive expression of form and function rooted in supreme reliability.

TUDOR GRANTOUR

This year, TUDOR is giving a new dimension to the Grantour line, its collection devoted to passion for motor sports, by redesigning its Grantour Date and Grantour Chrono models and introducing a new model : the Grantour Chrono Fly-Back. This most recent addition to the collection allows consecutive time intervals to be measured rapidly thanks to its on the fly chronograph reset and instant restart functions.

With the same 42 mm case as the Grantour Date and Grantour Chrono models, this new model is equipped with a Fly-Back pusher that has a red marking. The small seconds hand counter at 9 o’clock is set in a background motif reminiscent of automobile transmission belts. The Grantour Chrono Fly-Back model is available in steel and in a combination of steel and 18 ct pink gold, a first for the TUDOR brand.

All the models in the Grantour line are equipped with bistable pushers that are lockable at one eighth of a turn, and satin-finished streamlined lugs that have a distinctly technical look. Other features such as the new bevelled hour markers and the flange with minute markers are among some of this year’s enhancements to the Grantour Date, Chrono and Chrono Fly-Back models.

The Grantour Chrono and Grantour Date further assert their sporty flair and noble lines with their new 42 mm cases and refined features.

The Grantour Date, Chrono and Chrono Fly-Back models are available with a satin-finished three-piece link steel bracelet with a polished centre piece, or a sporty leather strap with large or micro-perforations and a folding clasp with a new safety catch.

TUDOR GRANTOUR CHRONO FLy-BACK

References 20550N and 20551N

• 42 mm steel case with polished and satin finish
• Black-lacquered fixed graduated bezel made of steel or 18 ct pink gold
• Self-winding mechanical chronograph movement
• Power reserve of approximately 42 hours
• Steel or 18 ct pink gold bistable lockable chronograph pushers with red and black markings
• 60-minute totalizer at 9 o’clock
• Small seconds hand at 3 o’clock
• Date at 6 o’clock
• Sapphire crystal
• Steel or 18 ct pink gold screw-down winding crown
• Waterproof to a depth of 150 m (500 ft)
• Steel or steel and 18 ct pink gold bracelet, or leather strap with large or micro-perforations, folding clasp and safety catch