Ref. 857.020
The Sinn 857 S UTC, reference 857.020, has a 43 mm steel case finished with Black Hard Coating. This GMT watch indicates a second time zone beside the date on a matte black dial beneath sapphire crystal. The self-winding mechanism is calibre SW330-1. TEGIMENT hardening forms the base for the exterior coating. At 12 mm thick, the case is water resistant to 200 metres. The captive pilot's bezel rotates both ways with minute clicks. Magnetic Field Protection guards the mechanism against magnetic interference.
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TECHNICAL SPECIFICATIONS
CASE
Diameter
43mm
Thickness
12mm
Lug Width
22mm
Case Material
Steel
Water Resistance
200m
Crystal
Sapphire Crystal
MOVEMENT
Movement Type
Automatic
Caliber
SW330-1
Frequency
28,800 vph (4 Hz)
Jewels
25 jewels
DIAL
Dial Color
Black
FEATURES & COMPLICATIONS
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QUICK FACTS
BRAND
Sinn SpezialuhrenREFERENCE
857.020COLLECTION
856/857MOVEMENT
AutomaticCALIBER
SW330-1CASE MATERIAL
SteelCRYSTAL
Sapphire CrystalWATER RESISTANCE
200m (snorkeling)FOR WATCH DEALERS
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