Pocket Watch Database

E. Howard Watch Co. (Keystone) Series 5

Grade Series 5 is a 19j Openface or Hunting watch maufacturered by E. Howard Watch Co. (Keystone). The size 16s, Model 1907 movement features a nickel finish and is adjusted to 5 positions, isochronism and temperature. During the time the watch was manufactured, it would have qualified for railroad service and is considered to be railroad grade. Each movement was fitted at the factory with a double-sunk dial.

Series 5 Movement Characteristics

  • Size16s
  • Jewels19j
  • ConfigurationOpenface or Hunting
  • FinishNickel
  • Model1907
  • SettingLever or Pendant
  • AdjustedYes
  • Railroad GradeYes

Series 5 Production Info

  • Total Production16,600
  • Number of Runs27
  • Production Years1910-1912
  • First Serial970,001
  • Last Serial1,154,200
  • Largest Run1,500
  • Smallest Run100
  • Most Common Run1,000

Research Notes

The Series 5 is a 16-Size, 19-Jewel, Model 1907 movement, originally introduced July 1908 as recommended for railroad service with a straight-finger train bridge, jeweled safety barrel, and parallel bar damaskeening pattern. Early movements are signed in black inlay script without markings indicating the series. The straight-finger bridge was quickly replaced by a refined “hooked” bridge while a marking for adjustments was added to the pillar plate, “Extra Adjustment Five Positions Temperature.” Later movements feature friction jeweling instead of the raised gold pressed settings and are marked with the “Arrow and Triangle” emblem. Eventually, the “Series 5” marking was added on the barrel plate in addition to the emblem. The last iteration of the Series 5 replaced the jeweled safety barrel with a standard going barrel. To retain the 19-Jewel count, endcaps were added to the escape wheel.