This chronograph has chronograph timing capabilities but can also be used as a Dive Watch.

 

Movement is 7750 ETA Valjoux Automatic (Self Winding) 25 jewel minimum Swiss Made Movement. Movement has “Date & Day” display with “Rapid Date and Day Correction”. Chronograph has 1/5 second (100^th minute) timing. Movement is non-magnetic and has minimum 36 hour running time.

 

Case construction allows for 300M/1000ft water resistance by using Screw-Down Crown and Screw-Down Side pushers. Revolving external bezel is calibrated from 0 to 60 in white on black background. Case diameter is 44.5mm and high turning bezel is 46.6mm. Case is made of 316L Stainless Steel and has a sapphire crystal.

 

Dial display shows standard and supplemental time 1 – 12 (13 – 24); also, dial displays Date and Day. Chronograph timing is dual graduated, inner graduations are 1/5 sec and as well as decimal 1/100minute timing (alternate inner timing ring). Sweep Second hand indicates timing in  1/5 sec (&/or 1/100 minute) up to 60 sec (1 minute); Chronograph sub registers measure up to 30 minutes and 12 hours each. Register indexes & hands use MARAGLO paint for night viewing. Encapsulated tritium (Isotope H3) light sources are used for dial at each hour position as well as the Minute and Hour hands, activity between 28-30 millicuries (under 30 millicuries). 

 

Meets the requirements of 

NSN: 6645015440408

NSN: 6645200028253