Important Modern & Vintage Timepieces

Hong Kong, May 10, 2020

LOT 172

Arnold & Son - Ref. 1H6AS.B05A.C79F, World Time, equation of time, mean solar time, date, month; “Hornet World Timer”; numbered edition; stainless steel

Stainless steel, self-winding, round-shaped, large gentleman’s wristwatch, water-resistant with engraved case-back screwed by six screws, black dial with radial indexes (hour triangle red-tipped hand and minute hand), with seven horological complications: • Date of the month, so-called “big date” (double aperture at 5 o’clock) • Month of the year (graduated scale inside the circle of hour-markers, with the white super-luminova index) • “Sector”-type equation of time (subsidiary sector at 6 o’clock, with the small white index indicating the difference between apparent solar and mean solar time) • World Time (outer revolving ring, adjustable by the crown at 9 o’clock) • Multiple time zone display (activated by the push-piece at 2 o’clock) • Second time zone or mean solar time (long triangle-tipped hour hand with white super-luminova, completing a full turn of the dial in 24 hours, adjustable by the crown at 10 o’clock) • Third time zone (long sun-tipped hour hand with red super-luminova, can be set to show time zones in half-and quarter-hours, a useful aid in parts of the world like India and the Pacific; it also slides, permitting it to be set to display the mean solar time of any location according to its longitude).