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ARNOLD & SON
SIR JOHN WHITE GOLD, BLACK ING
Manual Tourbillon, exclusive Arnold & Son calibre A1767. 21’600 vibrations per hour. 45 mm-diameter, thickness 11.46mm, see-through case-back secured by 8 screws with royal marine crown-symbol and engraved limited edition number, flange bezel in galvanic black. Domed sapphire glass with anti-reflective coating on both sides. Sapphire see-through case-back secured by 8 screws. Large scale genuine alligator strap with folding buckle clasp. Fixed with self-locking screws.
Very high grade finish:
Bridges and plates in plated black gold, finely sand-blasted. The sunburst pattern is obtained through sand-blasting and diamond-polishing on the bridges surface. Screws, “barrettes” and bridges of Tourbillon in polished steel.