Regular price $850.00

Our LSO watch is specifically designed for Landing Signal Officers to improve their efficiency in timing groove length of aircrafts on board Aircraft Carriers.   The Landing Signal Officer, is in charge of the safe and expeditious recovery of aircraft both day and night onboard US aircraft carriers. 

  • Swiss-engineered Quartz movement for unparalled precision
  • Diameter: 44mm
  • Case: Stainless Steel or DLC (Black)
  • BGW9 Lume
  • Case Back: Screw-in
  • Water Resistant, 100m
  • Domed, sapphire crystal
  • Strap: Black alligator leather 
  • Assembled in the United States by American watch craftsmen

Our stainless steel LSO comes standard on a black alligator leather band with fold-over stainless steel clasp.  You can add additional straps to your cart by selecting an option above. We recommend adding a brown leather strap or a stainless steel bracelet to give your De Pol watch a completely different look


This patent pending design features color indicators on the chapter ring to aid LSOs in timing groove length.  Groove length time starts when the aircraft rolls wings level, and finishes when it touches down on the carrier deck. The goal is to land quickly and safely within the green indicator.  The LSO then determines a pilot's grade based on this and other factors such as glideslope and lineup. 

Every time an aircraft touches down on a carrier, the pilot receives a grade.  This practice helps prevent complacency and establishes a baseline on which the pilot can improve.  The green indicator, representing a groove length of 15-18 seconds, is the goal.  If a pilot is slightly outside that parameter, in the yellow, it is considered a "little" deviation.  A groove length of 12-14 seconds is considered "a little not enough straightaway" (NESA) and 19-21 seconds is "a little long in the grove" (LIG).  The brown color indicates a "full" deviation. A groove length of 9-11 seconds is considered "full not enough straightaway" NESA, and 22-24 seconds is considered "full long in the groove" LIG.  The red color indicates an "underlined" deviation: _LIG_ or _NESA_.