A C. Two-body, polished and brushed, stepped bezel, screw down case back, concave lugs. D. Matte silver with applied pink gold indexes, Arabic quarters and luminous dots. Epée pink gold hands. M. Cal. 27B21, rhodium-plated, 16 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating fl at balance spring. Dial, case and movement signed. Diam. 34 mm. Thickness 10 mm. B C. Two-body, solid, polished and brushed, screw down case back, graduated inclined bezel with painted Arabic numerals and triangular indexes In 12 hours, straight lugs. D. Bicolor silver and champagne with printed gold dart indexes and Arabic numerals in 24 hours, at the center, silver revolving dial bearing the names of 24 cities in the world, the red mark between Auckland and Midway indicates the date line. Blued steel dauphine hands. M. Cal. 28.5 N 21 T, copper-colored, 17 jewels, straight-line lever escapement, monometallic balance, shock-absorber, self-compensating Breguet balance spring, bumper rotor. Dial, case and movement signed. Diam. 36 mm. Thickness 12 mm.