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HELOISA D.U.
HELOISA  D.U.   CASE : Chrome plated , 34 mm . BACK :  Screw , steel . Round  ” wasserdicht ”  and  ” stahlboden ” .  Inside  ” D.U. ” . MOVEMENT : AS 1130  anonym . PUNCHING :  D.U.  only . S/N :  No S/N .        
HADO D.H.
  HADO  D.H. CASE  .  Chrome plated  ,  33 mm . BACK  .  Screw  ,  steel .            It only shows the S/N and the manufacturer’s symbol ( helmet ) MOVEMENT .  There are two movements :                       1.  AS1130 modified and brassed . Probably the first version of AS1130 .                       2.  FB 2075  ( Bernard Foerster ) . It is fitted with the dust-cover instead of stop .
GLYCINE D.H.
GLYCINE  D.H. CASE  :  chrome plated  ,  34 mm . BACK  :  Screw  ,  steel .               Inside , letters “CB” are punched .               As far as the outside is concerned ,there are at least  two types of writing layout .               To make the description easier , below are the photos of the common versions  available . MOVEMENT  :  AS 1130 . Name of brand on the .
HELVETIA D.H.
  HELVETIA  D.H. CASE . Chrome plated , 34mm .             Very often , on the back of the right upper lug are punched three digits : they correspond             to the last three digits of the S/N punched inside the back . BACK . Screw  ,  steel .             Outside only shows the S/N and the Helvetia code number ( 3190).             Inside there is a punched number .
ERA D.H.
  ERA  D.H. CASE  :  Chrome plated  ,  34 mm . BACK  :  Screw  ,  steel .               In addition to the S/N, it reports “ Stahlboden “.               On some watches  it also appears “ Wasserdicht “. MOVEMENT   :  AS 1130  anonym .                          Instead of having the movement stop ring , it has a dust-cover . PUNCHING  :  D.H.  only                        Letters are larger ( 2 mm .
BUREN D.H.
BUREN  D.H. CASE  :  Chrome plated  ,  34 mm . BACK  :  Screw  ,  steel .             Outside shows the S/N only . Inside is punched a number  . MOVEMENT  :  Buren Grand Prix Cal 410 .                        The Company name is punched on the ratchet wheel .                        Most of the movements have separate wheels bridges . However , some watches have been detected                        with a modified .
EMCO D.H.
EMCO  D.H. CASE  :  Chrome plated  ,  34 mm . BACK  :  Screw  ,  steel .             Outside shows only the S/N and the number “3190” typical of Helvetia D.H.             Inside a number is punched . MOVEMENT  :  HELVETIA 82 / A .                          It is signed  “Helvetia “ on the ratchet wheel . PUNCHING  :  D.H.  only .                        letters and numbers have same size ( 1mm .
HELVETIA D.I. H.
HELVETIA  D.I.    H. CASE  .  Stainless steel  ,  34mm . BACK  .  Snap-on  ,  steel .            Shows the S/N ( very thin ) and the code number of Helvetia ( in this case :  2  3199 ). MOVEMENT  .  Helvetia  “Cal 800”. PUNCHING  .  D.I.  H.  only . S/N  .  6 digits .  By the number of registered watches (22) , there may be two batches .                .
ETANCHE D.H.
ETANCHE  D.H. CASE  :  Chrome plated  ,  28 mm .               Some watches have a brass bezel . BACK  :  Snap-on  ,  steel .               Reports the S/N only . MOVEMENT  :  CUPILLARD 233 ( 15 juwels ) PUNCHING  :  D.H.  only                        Letters are larger ( 2mm ) than numbers ( 1mm ). S/N  :  7 digits . It starts always with “ 00 “ . Range could .
Omega Rectangle Allongee Bombé – An early Art-Deco XXLTank Extreme Curvex
This is one of these watches that are very hard to find, probably very few have been made as this is an extreme watch even by today`s standards of larger size watches, so probably in the early part of the 20Th century, when this watch was made and wristwatches were appreciated by their small size,  this must have been a most uncommon timepieces. he way it has been engineered .
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