In 1948, Eterna advanced self-winding watch technology with the development of the Eterna-matic automatic movement. The use of five strategically placed ball bearings made the movement very efficient and significantly reduced friction and resistance on the oscillating weight that wound the mainspring. This reduced the wear and tear on internal parts, increasing the watch’s accuracy and useful life.   Since then they have been continuing to innovate and have been making quality robust watches.  This particular model that is offered here features a very nice back dial with luminous silver-tone hands and index hour markers.  Arabic numerals mark the 6, 9 and 12 o'clock positions and minute markers around the outer rim. 
 
*** The pictures may show the reflection of the camera lens, black spots mostly ***

Details:
 
Make: Eterna-Matic
Model: Monterey
Reference: 1610.41
Year: 2016
Material: Stainless Steel
Dimensions: 40mm
Crystal: Sapphire Glass
Movement: Automatic Valjoux 7750
Bracelet/Strap: Steel
Lug Width: 23mm
Box/Papers: No/No