Gruen curvex 10k gold filled precision watch Switzerland ; Mon, 19 June 2023 04:28

Any information is helpful. I believe it was made in Switzerland in the 1940's. States that it's 10k goldfield, very nice timepiece. I've personally never seen such a beautiful timepiece.. I do not believe the dark blue band on it is original and also the band is not in the best of shape. However I could be wrong as I am not an expert. I have no clue as to the value of this timepiece and really don't know much about Gruen Curvex 🤷‍♀️

If anyone has any helpful information, I would greatly appreciate it.





Edit by admin: put pictures inside message

Sat, 10 June 2023 18:39

Model name: Techni-Quadron
Type: wristwatch
Period/date: 1929-1935
Gender: male

Case Maker: ?
Case Material: 0.900 silver
Case Serial: 405025
Case Style no: - Alpina Gruen

Caliber: 877S
Movement Maker: Aegler
Movement Serial: 1839128

Bracelet: vintage Monopol strap with stepped clasp

Tue, 23 May 2023 14:54

Nothing too exciting, but I don't recall ever seeing an Alpina-Gruen with a solid gold Cincinnati case.  I knew that Gruen exported some gold filled cases to Alpina, but I thought the precious metal cases were all Swiss, mostly Weber.  It's kind of weird to see a German assay stamp on a Cincinnati case.  Anyway, posted here for posterity.

The most beautiful watch in America; Tue, 18 April 2023 19:54

Description
The light brown cardboard/paper box has a brown rim. The lid is not flat. The watch holder is made from brown velvet. Inisde the lid is silk with “Gruen Wristlet” and “The most beautiful in America”.

Period: 1915-1917?
Watch type: ladies silk ribbon wristlet
Size: H=2.5 cm W=9.7 cm D=4.8 cm
Inventor: unknown
Patents: unknown

Box maker : Maybe Dennison Mfg Company? No markings though.

Other: dating of this box is done by looking at advertisements. For a short period Gruen mentioned the “most beautiful..” in their ads.






Example advertisement on hifi archiv ( https://www.hifi-archiv.info/Uhren-Werbung/Gruen/Gruen%20191 5%20101.jpg).

Tue, 18 April 2023 19:44

Type : Pocket watch
Period/date : 1874-1883?
Gender : Men's

Caliber : unknown - columbus Watch co Hunter
Size: 18? 19? TBD
Movement Maker : Aeby & landry - Madretsch
Movement Serial: 1605

Other: this (dirty) movement has the Gruen safety pinion patent 157913 from 22-12-1974 inside. Bimetallic temp compensated balance wheel.

Fri, 31 March 2023 20:06

Model name: Master deluxe (with metal strap a Supreme)
Type: wristwatch
Period/date: 1937
Gender: male

Case Maker: star watch case co
Case Material: 10kgfd bezel, guildite back
Case Serial: 576409
Case Style no: 296

Caliber: 501 fifteen 15 jewels 2 adjustments, unadjusted
Markings: gruen watch co
Movement Maker: gruen
Movement Serial: 2-104801:

Other info: probably original leather strap.

Wed, 08 March 2023 17:17

Model name: Nautilus
Type: autowind
Period/date: 1963
Gender: male

Case Maker: unknown, made in France
Case Material: stainless steel back, gf bezel
Case Serial: none
Case Style no: none

Caliber: 710RSS precision
Movement Maker: gruen?
Movement Serial: none

Bracelet: not yet

Other info: radium dots on the dial and in the hands. Desperately needs a new crystal 😆

Mon, 27 February 2023 20:49

Red plastic display case. Red silk watch holder. Red fabric in lid with golden Gruen The precision watch. Both inserts made of paper. Feels cheap…
Family from this white box: https://vintagegruen.org/vgforum/index.php?t=msg&th=1939 &start=0&


Period: Early 1950s.
Watch type: Unknown
Size: tbd
Inventor: Unknown
Patents: Unknown, "Pat Pend"

Box maker: BCN

Tue, 27 December 2022 18:53

Model name : 50th Anniversary
Type : Pocket watch
Period/date : 1924 (The movement was made in 1924, but it is unclear when this watch was cased and sold)
Gender : Men's

Case Maker : Gruen Cincinnati
Case Material : 18kt white gold
Case Serial : 1072311
Case Style no : none
Case Inscription (inside caseback): "Made Especially for Gilbert J Easton"

Caliber : See below
Movement Maker : Gruen
Movement Serial: 204

Movement details from Priceless Possessions of A Few by Fuller.

• 17-linge (approximately 10-size) open face, 23 jewels (21 extra quality ruby jewels, plus two faceted diamond cap jewels over escape wheel and balance wheel pivots on upper plates)
  
• 12kt gold plates (total 19 penny weight), individually engraved in floral relief pattern
  
• Steel cup in each counter-bored hole for plate screws
  
• Follow-up die used to slightly bevel around edge of spoke and inside rim of wheels
  
• Gold plated train wheels
  
• Chronometer style balance with solid gold screws
  
• Detachable staff which can be removed without disturbing relationship of balance hairspring, collet, and roller jewel
  
• Jewel pin fastened in balance arm with a bearing twice the length of the usual watch, making it doubly secure against coming loose
  
• Double steel roller
  
• Hand finished visible steel escapement with posing arms
  
• Patent micrometic regulator of continuous equal action
  
• Meantime adjusting gold screws
  
• True isochronal and Breguet hairspring
  
• Finest Swiss mainspring of lasting quality and great elasticity made by hand-rubbing so that the motive power is practically constant whether watch is fully wound or nearly run down
  
• Patented American pendant-set device of very few pieces
  
• Geneva style stop works and cut-away barrel bridges
  
• Eight adjustments to all positions, isochronism and temperature
  
• Fine Silver dial
  
• Patented inverted (Verithin) wheel train construction
  
• Extra finely finished in all details
  

Wed, 30 November 2022 20:34

Description
Fake leather paper and wood box. Greek golden (faded) rim. Gruen service crest inside. Exists of two parts, bottom and lid. Inside the case there is a black velvet removable holder with two metal holders, wit a foldable part for presentation.

Period: 1920-1930
Watch type: men wrist watch (strap, f.e. Quadron)
Size: 21.5cm wide, 2cm high, 4.8 cm deep.
Inventor:unknown
Patents: pat. Mar. 10. 1925 (USD66772 Harold R Haerr)

Box maker. Unkown.