For sale we have a 1940s Gruen Curvex Precision. It has a less common black and diamond dial, with a 14k yellow gold case. It has the classic curving associated with the Curvex name. It has a facetted design, tapering towards the lugs. Inside it has the curved, calibre 460 movement, which has been recently serviced. 
 
The case measures 22mm x 26mm. It is a petite gents watch, with the focus placed on the stylistic design. It has a decent lug-to-lug presence, with a measurement of 35.5mm. This lug length is created via the curving nature of the watch. The watch creates intrigue on the wrist, with its facetted design to the sides of the case. 
 
The black dial has luxurious gold signing with a square outer minute track and sub-second dial. It is signed ‘Gruen Curvex’ in the classic font. It is marked ‘Precision’ above the sub-second dial. The sub-second hand sits within an inset circle to the centre of the square surround. The hour markers are eyecatching, with raised, applied Pyramid markers in a gold tone. There is also the beautiful inclusion of a diamond marker at 9, 12 and 3, creating a wonderful touch of class, which catches the eye.
 
 To the rear, the case is brushed, which has polished with wear. It has the Gruen signing and is marked ‘WB 14K’. It has the serial number 301055. Inside it is marked as being cased and times in U.S.A. by Gruen Watch Co. It is once again marked 14k gold, with the case made by WB.
 
Inside is the manual wind Gruen cal 460. It is a manual wind movement, with a jewel count of 17 and a frequency of 18,000 BPH. The Curvex is famous for its curved movement, which allows the case shape, a real genius piece of design.
The movement has been recently serviced by ourselves and is keeping time to within +20 seconds deviation a day.
 
Full condition report below. Please see the images as these compliment and aid the description provided below.
 
Dial: 
The dial is original and is in fair condition. It has scratches and marks associated with age. The signing is good and clear and the hour markers have no obvious wear.
 
Hands: 
The hands are original. They have corrosion associated with ageing. They have some bending. 
 
Glass: 
The acrylic crystal is original and is in good condition with no obvious marking.
 
Crown: 
The crown is a well-matched replacement. It is not signed Gruen.
 
Case:
The case is 14k yellow gold. It is in fair condition for the age, with only light surface scratching associated with age. It remains unpolished.
 
Caseback:
The case back is 14k yellow gold and is in good condition with clear engravings and light surface scratching. 
 
Strap: 
The watch comes on a new genuine leather strap. 
 
Movement: 
The movement is a Gruen cal 460. It is a manual wind movement, with a jewel count of 17 and a frequency of 18,000 BPH. The Curvex is famous for its curved movement, which allows the case shape. 
 
The movement has been recently serviced by ourselves. It’s keeping time to within +20 seconds deviation a day, with an amplitude of 250 degrees and a beat error of 1.5m/s.
 
Case dimensions: 
Case width: 22mm
Case width with crown: 23.5mm
Case length: 36mm
Case length lug to lug: 35.25mm
Case Depth: 8.25mm
Lug width: 16mm