Lot 31
Dornblüth & Sohn

Weltzeit (World Time/GMT) in Stainless Steel

Ref. 99.10REG (GR) ST
Sold forCHF 6'500
Total bids4
EstimateCHF 5'000 – 10'000
LocationOffice, Zurich
  • No buyer’s premium
CaseRound case in stainless steel with independent hour hand pusher at 2 o'clock, winding crown at 3 o'clock, display caseback
StrapBlue suede strap with stainless steel pin buckle
DialSilver dial with peripheral minute track, second timezone 24 hour dial at 6 o'clock, power reserve at 12 o'clock, signed 'D. Dornblüth & Sohn' at 9 o'clock This is most likely the only example that kept the prototype dial with both 'Weltzeit' and 'Regulator' signatures. Regular production models are only signed 'Weltzeit'. Moreover, the chapter ring is hand-engraved and then filled with ink.
MovementHand-wound mechanical movement Cal. 99.10 Weltzeit Regulator, functions: hours, minutes, seconds, power reserve, second time zone (GMT)
Cal.99.10
Movement No.3
Diameter:42mm
Lug-to-lug52mm
Case:Very good, minor signs of wear
Strap:Good, signs of wear
Dial:Mint condition
Movement:Good, all functions working properly
Amplitude (Dial on top/Lift angle 52):Approximately 300°
Accuracy (Dial on top):Approximately +20 sec/day
Box:Yes
Papers:Yes