76
Ref. 1665; inside caseback stamped 1665 IV.67 440
An early and very rare stainless steel automatic wristwatch with date, gas escape valve, “double red” Mk I dial, and patent pending caseback
1968
40mm Diameter
Case, dial, movement, and buckle signed; outer caseback inscribed "Patent Pending"
Estimate
$80,000 - 160,000
CHF79,700-159,000
€69,500-139,000
HK$627,000-1,250,000
Sold for $100,000