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Home Products Sinn u2 SDR 1020.040

Sinn u2 SDR 1020.040

by Sinn Watches

SKU 1097704

Date Added 07/26/2024

# Available This product is out of stock

Price $1,995.00

Overview

The diving watch U2 is a professional mission timer which uses genuine German Submarine Steel, a material with extreme seawater-resistance and the highest level of non-magnetic properties. Sinn’s special oil and an adjusted position tolerance of the parts in the diving watch U2 series guarantee operation at temperatures ranging from minus 45°C to plus 80°C.

And that's not all: with the diver's bezel, this diving watch is well-equipped to measure the duration of a dive accurately. Fogging of the dial poses a safety risk when diving. To prevent this, we use EDR seals. This material, with its extreme chemical resistance and only a quarter of the gas permeability of conventional seals, prevents moisture from diffusing into the diving watch. The slightly domed, 4.2 mm thick scratch-resistance anti-reflective sapphire crystal glass withstands even the highest pressures. The case is filled with a protective gas, while three drying capsules keep the interior dry.

Special characteristics

Movement 

SW 330-1 
Self-winding mechanism 
25 bearing jewels 
28,800 semi-oscillations per hour 
Seconds stop function
Anti-magnetic as per DIN 8309

Case

Case made of German Submarine Steel, bead-blasted 
Sapphire crystal glass in front, anti-reflective on both sides 
Case back screw-fastened 
Crown screwable 
Meet the technical requirements for water-resistance, as set out in standard DIN 8310 
Water-resistant and pressure-resistant to 2,000 m diving depth (= 200 bar), certified by DNV
According to the technical demands for the diving norm DIN 8306 
Tested based on European diving equipment standards EN 250 / EN14143 and certified by DNV
Low pressure resistant

Functions 

Hours, minutes, seconds 
Second time zone on a 24-hour basis 
Date display 
Diver's bezel with minute ratcheting and luminous key mark

SINN Technologies 

Bezel with 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

Dimensions and Weight 

Case diameter: 44 mm 
Band lug width: 22 mm 
Case thickness: 15.5 mm 
Weight without strap: 114 gramme

Dial and Hands 

Matte black dial 
Indices coated with luminescent colour 
Hour, minute and second hand coated with luminescent colour 
Mission timer design for optimal readability

Comes with original box, COA s/n 1020.2653, instructions, extra links and tool. Has some scuffs on the bracelet, has been worn, otherwise excellent condition.

 

Product Details

Weight (oz) 6.9

Source Previously owned

Additional Specs

About the Maker

Sinn Watches

"Helmut Sinn, an instructor for blind flight and former World War II pilot, founds the company “Helmut Sinn Spezialuhren” in Frankfurt am Main, 1961. The company's core business is the manufacture of navigation clocks and pilot chronographs.