Brand: Arctos, a private label for Lemania Watch Co.

Model: Lemania 5100 World-Time Automatic Chronograph (RARE); Swiss Made circa early 1980s

Case: Solid stainless steel case with screw-down back is approximately 40mm across the bezel excluding the original unsigned winding crown

Bracelet/Strap: Rare vintage period-correct 20mm stainless steel linked bracelet with unsigned fold-over clasp (fits up to approximately a 7" wrist); can be purchased on a strap via customer request

Movement: Lemania cal. 5100 self-winding automatic chronograph movement (17 jewels) with quick-set day and date functions, hacking seconds feature, and 24-hour display; 28,800 BPH; Swiss Made

Features: Stunning original matte black dial with creamy Tritium hour markers and quick-set day-date display at 3 o'clock (French day disc); original handset includes highly-legible red chronograph hands; 12-hour chronograph recording capability; subsidiary running seconds at 9 o'clock; 24-hour display at 12 o'clock; original matte black rotating world-time bezel displays the current time in other major world cities; desirable Lemania 5100 movement; domed acrylic crystal

Condition: Mint original condition overall with only minor signs of wear consistent with age and light use; sharp stainless steel case is completely unpolished with all of the original finishes in tact; crisp screw-down caseback with the original brushed finish throughout and a few toolmarks; beautiful original matte black dial with creamy Tritium patina to the luminous elements; original Tritium hands with matching patina; fantastic original rotating world-time bezel with the original luminous dot in tact; clean domed acrylic crystal exhibits a few very minor superficial scratches

Other: This rare vintage Arctos World-Time Chronograph packs a lot of features into one incredibly utilitarian pilot watch. With a rotating world-time bezel, one can quickly determine the current time in other major world cities at a glance. It is powered by a robust Lemania 5100 automatic chronograph movement that is popular in collector circles due to its unique design layout and overall functionality. The large central minute counter with legible red "airplane" tip tracks elapsed minutes while the small red hand tracks elapsed hours in the sub-register located at 6 o'clock - Very innovative! There is also a constant 24-hour display located at 12 o'clock to instantly determine AM vs. PM hours. The convenient quick-set day and date are located at 3 o'clock to maintain a well-balanced aesthetic. The day disc is in French, which is a nice touch given that the watch was originally produced in Switzerland and likely remained there for most of its life. We love the look of the matte black dial with contrast white printing. This watch was clearly designed with function and legibility in mind and we wouldn't expect any less out of a pilot watch.