Instrument Watch - Model 857 S (EZM 7 S)

Instrument Watch - Model 857 S (EZM 7 S)
The Mission Timer 7 - developed for the fire brigade
 
 
 
Sinn Spezialuhren has designed the Mission Timer (EZM) 7 S for use in the toughest conditions – it is particularly resilient to the penetration of water and dust, to scratches, temperature change and the influence of magnetic forces. Thanks to its colour-coded rotating bezel, the EZM 7 S is easy to operate, making it child’s play for people using breathing protection apparatus to set and read off key durations – from CSA to LPA.
Like our Sinn Spezialuhren diving watches, this captive rotating bezel can even be set when wearing gloves. The surface of the bead-blasted stainless-steel case is hardened using TEGIMENT Technology, making it especially scratch-resistant. This TEGIMENT case surface also provides the base for the high-quality Black Hard Coating (PVD coating). This combined process results in a highly practical benefit: applying the coating to the hardened stainless steel dramatically reduces wear and tear of the coloured coating. The sapphire crystal glass with anti-reflective coating on both sides and luminous indices ensures optimum readability – by day or night. Ideal for heavy-duty use by the fire brigade or rescue services – also thanks to the technology used. For example, the Ar -Dehumidifying Technology guarantees greater functional reliability and freedom from fogging, while temperature resistance technology ensures the functional reliability of the EZM 7 S from –45ºC up to +80ºC. A special limited edition of 300 EZM 7 S timepieces is being produced, each with an engraved limited-edition number on the case back

  • Limited to 300 units
  • Case made of stainless steel, black
  • Case made with Black Hard Coating on a TEGIMENT Technology basis
  • Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
  • Magnetic Field Protection up to 80,000 A/m
  • Functionally reliable from –45°C up to +80°C
  • Second time zone on a 24-hour basis
  • Captive key operation bezel with minute ratcheting
  • Crown on the left side of the case to prevent pressure on the back of the hand
  • Sapphire crystal glass
  • Nickel-free case back without TEGIMENT Technology
  • Pressure-resistant to 20 bar
  • Low pressure resistant

    • Technical Data
    Model 857 S (EZM 7 S)
    Mechanical Movement:
    • ETA 2893-2
    • Self-winding mechanism
    • 21 bearing jewels
    • 28,800 semi-oscillations per hour
    • Seconds stop function
    • Shock resistant as per DIN 8308
    • Anti-magnetic as per DIN 8309
    Case:
    • Case made of stainless steel, black
    • Black Hard Coating on a TEGIMENT Technology basis
    • Sapphire crystal glass in front, anti-reflective on both sides
    • Case back screw-fastened, nickel-free
    • Case back without TEGIMENT Technology
    • Crown screwable
    • Meet the technical requirements for waterproofness, as set out in standard DIN 8310
    • Pressure-resistant up to 20 bar
    • Low pressure resistant
    Functions:
    • Hours, minutes, seconds
    • Second time zone on a 24-hour basis
    • Date display
    • Key operation bezel with minute ratechting in one direction with NBC rescue operation scale and luminous key mark
    SINN Technologies:
    • Black Hard Coating on a TEGIMENT Technology basis
    • Captive bezel
    • Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
    • Temperature resistance technology, therefore functionally reliable at temperatures from -45°C up to +80°C
    • Magnetic Field Protection up to 80,000 A/m
    Dimensions and Weight:
    • Case diameter: 43 mm
    • Case thickness: 12 mm
    • Band lug width: 22 mm
    • Weight without strap: 90 gramme
    Dial and Hands"
    • Matte black dial
    • Indices coated with luminescent colour
    • Hour and minute hand coated with luminescent colour
    Guarantee:
    • 3 years