Sinn 857
Mechanical Movement
ETA 2892-A2
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, bead-blasted
Sapphire crystal glass in front, anti-reflective on both sides
Case back screw-fastened, nickel-free
Crown screwable
Water resistant as per DIN 8310
Pressure resistant to 20 bar (= 200 m water depth)
Low pressure resistant
Functions
Hours, minutes, seconds
Date display
Pilot’s bezel with minute ratcheting and luminous key mark
SINN Technologies
TEGIMENT Technology, therefore especially scratch-resistant
Captive bezel
Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
Magnetic Field Protection up to 80,000 A/m
Dimensions and Weight
Case diameter: 43 mm
Band lug width: 22 mm
Case thickness: 12 mm
Weight without strap: 90 gramme
Dial and Hands
Matte black dial
Numbers and indices coated with luminescent colour
Hour and minute hand coated with luminescent colour
Warranty
3 years
Damasko DA46
Movement:
ETA 28362
Self-winding, mechanical movement
25 jewels
28,800 bph
Shockproof according to DIN 8308
Anti-magnetic according to DIN 8309
Gold-plated movement, rotor with Geneva stripes
DA 46 functions:
Hour, minute, permanent central small sweep second
Day/date window with new, modified position
Case:
Stainless steel, beadblasted, nickelfree, finished with extremely abrasionproof Damest layer
Icehardened to 60 HRC or 710 HV, fully hardened
Integrated antimagnetic inner cage, antimagnetic to 80,000 A/m or 100 mT
Sapphire crystal with antireflective coating on both sides, AR coating on the underside only: available at special request
Crystal gasket resistant to UV radiation
Solid screw back with Oring Viton gasket
Gaskets of crown with permanent lubrication
Gaskets made of Viton offering premium chemical resistance
Screwdown crown with protective shoulders, crown mechanically hardened – nearly indestructible
Crown barrel screwed into case according to “System Damasko” – absolutely easy to service
Bi-directional rotating bezel with exact minute engagement on ceramic bearing,
patented mechanics
Protected from the intrusion of dust by gasket element
Hardened, PVD-coated and scratchproof bezel insert
Two optional bezel inserts: 60minute countdown or 12hour ring (according to US
military specifications)
Water resistant according to DIN 8310, pressureproof up to 10 bar/100 metres
Crystal with secure fit also under negative pressure
Dial:
Matt black, hour markers and triangle at 12 provided with a persistent special paint
Hands:
The hour and minute hands are painted black and provided with a white, persistent special paint
The second hand is painted black and coated with signal yellow special paint
Strap and bracelet:
Handmade, waterproof and rubberlined black leather straps with beadblasted, hardened buckle
Dimensions and weights:
Diameter: 40 mm
Overall height: 12.40 mm
Bezel diameter: 41.80 mm
Lug width: 20 mm
Weight without strap ... grams
Warranty:
2 years
