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Sinn U1


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Sinn U1 Steel 44mm Green
Sinn U1 C Chronos Edition Automatik Stahl Herrenuhr Ref....
$5,200

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DE
Sinn U1 Steel 44mm Blue United States of America, California, Burlingame
TOP
Sinn U1 B German Submarine Steel with matt-blue dial - 1010.0102
$2,389
Free shipping
Professional dealer
4495
US
Sinn U1 Steel 44mm Black No numerals United States of America, Pennsylvania, Bala Cynwyd
Sinn U1 S E 1010.023
$2,950
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Professional dealer
1549
US
Sinn U1 Steel 44mm Black No numerals United States of America, Florida
Sinn Diving Watch U1 S E on Black Bracelet 1010.023
$3,000
Professional dealer
196
US
Sinn U1 Steel 44mm
Sinn U1 aus U-Boot-Stahl
$2,227
Professional dealer
1957
DE
Sinn U1 Steel 44mm Black
Sinn U1.S.E MOTHER EARTH 80 pieces Limited edition
$4,354
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142
JP
Sinn U1 Steel 44mm Grey No numerals
Sinn U1 Camouflage lim 500 full Set 3 Bracelets
$4,099
Professional dealer
328
DE
Sinn U1 Steel 44mm Black No numerals
Sinn U1
$1,861
Private Seller
SE
Sinn U1 Steel 44mm
Sinn U1 Camouflage Limited Edition 500 , Box+Papiere
$4,159
Professional dealer
519
DE
Sinn U1 Steel 44mm Green
Sinn U1 C Chronos Edition Automatik Stahl Herrenuhr Ref....
$4,955
Professional dealer
4635
DE
Sinn U1 Steel 44mm Blue United States of America, California, Burlingame
Sinn Diving Watch U1 B Blue Dial Solid Two-Link Stainless...
$2,519
Free shipping
Professional dealer
4495
US
Sinn U1 44mm Black
Sinn U1 S E
$2,563
Professional dealer
9086
DE
Sinn U1 Steel 44mm Black No numerals United States of America, Florida
Sinn U1 Diving Watch Bracelet 1010.010
$2,260
Professional dealer
196
US
Sinn U1 Steel 44mm
Sinn U1 aus U-Boot-Stahl
$2,354
Professional dealer
1957
DE
Sinn U1 44mm Black
Sinn Diving U1 Strap Black Dial 44 mm - 1010.010
$2,189
Professional dealer
1910
JP
Sinn U1 Steel Black No numerals
Sinn Taucheruhr U 1 Massivarmband
$2,312
Professional dealer
512
DE
Sinn U1 Steel 44mm Black No numerals
Sinn U1 SDR
$2,201
Private Seller
DE
Sinn U1 Steel 44mm Grey
Sinn U1 DS
$3,022
Professional dealer
64
DE
Sinn U1 Steel 44mm Black No numerals
Sinn U1 black The Hour Glass tempus Limited 250pcs Service 2020
$3,302
Professional dealer
2532
DE
Sinn U1 44mm Black United States of America, California, Burlingame
Sinn Diving U1 Stainless Steel 2-Link Black Dial 44 mm -...
$2,519
Free shipping
Professional dealer
4495
US
Sinn U1 Steel 44mm Brown
Sinn U1 DS
$3,059
Professional dealer
9086
DE
Sinn U1 Steel 44mm Blue
Sinn Diving Watch U1 B Blue Dial Solid Two-Link Stainless...
$3,022
Professional dealer
951
DK
Sinn U1 Steel 44mm Black No numerals
Sinn U1 SDR Steel Bracelet
$1,797
Professional dealer
610
SG
Sinn U1 44mm Black
Sinn Diving U1 SDR Stainless Steel Black Dial Watch 44mm -...
$2,189
Professional dealer
1910
JP
Sinn U1 Steel 44mm Black
Sinn U1 Taucheruhr Kautschukband
$2,312
Professional dealer
512
DE
Sinn U1 Steel 44mm Black
Sinn U1
$1,512
Private Seller
 
CH
Sinn U1 Steel 44mm Grey No numerals
Sinn U1 DS Limitiert
$3,047
Professional dealer
32
LI
Sinn U1 Steel 45mm Black
Sinn Diver U1 Vorserie -- first U1 ever made -- Collector Item
$3,487
Professional dealer
84
DE
Sinn U1 Steel 44mm Black United States of America, California, Burlingame
Sinn Diving Watch U1 S E Black Dial Solid Two-Link Stainless...
$2,999
Free shipping
Professional dealer
4495
US
Sinn U1 Steel 44mm Black
Sinn U1
$2,386
Professional dealer
9086
DE
Sinn U1 Steel 44mm Black
Sinn Diving U1 with TEGIMENT Black Dial Two-Link Stainless...
$3,255
Professional dealer
951
DK
Sinn U1 Steel 44mm No numerals
Sinn U1 Desert Limited Edition 350 Pieces
$2,906
Professional dealer
610
SG
Sinn U1 Steel 44mm Blue
Sinn U1 B German Submarine Steel with matt-blue dial - 1010.0102
$2,189
Professional dealer
1910
JP
Sinn U1 Steel 44mm Black No numerals
Sinn U1 SDR Taucheruhr
$2,447
Professional dealer
512
DE
Sinn U1 44mm
Sinn U1 U-Black The Hour Glass Watch Limited Edition
$5,000
Private Seller
TW
Sinn U1 Steel 44mm Black
Sinn U1 S
$2,558
Professional dealer
32
LI
Sinn U1 Steel 44mm Black No numerals
Sinn Diving Watch U1 SDR Ref: 1010.040-U1
$1,896
Professional dealer
122
SG
Sinn U1 Steel 44mm Black United States of America, California, Burlingame
Sinn Diving U1 Black Dial White Silicone Strap with Large...
$2,949
Free shipping
Professional dealer
4495
US
Sinn U1 Steel 44mm Black
Sinn U1
$2,386
Professional dealer
9086
DE
Sinn U1 Steel 44mm Blue
Sinn U1 B German Submarine Steel with matt-blue dial - 1010.0102
$2,435
Professional dealer
951
DK
Sinn U1 Steel 44mm Black
Sinn U1 Tempus Black Limited Edition 250 pieces
$2,371
Professional dealer
610
SG
Sinn U1 Steel 44mm Black No numerals
TOP
Sinn U1
$1,835
Private Seller
DE
Sinn U1 44mm White
Sinn Diving U1 S E Brown Leather Strap Cowhide Black Dial 44mm...
$2,250
Professional dealer
1910
JP
Sinn U1 Steel 44mm Black No numerals
Sinn U1 SE Taucheruhr Retro Stil
$2,875
Professional dealer
512
DE
Sinn U1 Steel 44mm Black No numerals
Sinn Men's 1010.0241 Diving U1 De Limited Edition Watch
$2,996
Professional dealer
4847
DE
Sinn U1 Steel 44mm Grey No numerals
Sinn U1 DS
$3,058
Professional dealer
2176
IT
Sinn U1 44mm Black United States of America, California, Burlingame
Sinn Diving U1 SDR Stainless Steel Black Dial Watch 44mm -...
$2,409
Free shipping
Professional dealer
4495
US
Sinn U1 Steel 44mm No numerals
Sinn U1 camouflage限量版
$3,342
Private Seller
CN
Sinn U1 Steel 44mm Black
Sinn Diving Watch U1 S E Black Dial Solid Two-Link Stainless...
$3,365
Professional dealer
951
DK
Sinn U1 Steel 44mm No numerals
Sinn U1 Camouflage
$2,944
Professional dealer
610
SG
Sinn U1 44mm Black
Sinn U1 DE
$3,353
Professional dealer
9086
DE
Sinn U1 Steel 44mm Black
Sinn Diving U1 with TEGIMENT Black Dial Black Silicone with...
$2,364
Professional dealer
1910
JP
Sinn U1 Steel 44mm Black
Sinn U1 DE 30 Jahre Deutsche Einheit limited Edition
$3,242
Professional dealer
512
DE
Sinn U1 Steel 44mm Black No numerals
Sinn Men's 1010.010 Diving U1 Black Dial Watch
$2,348
Professional dealer
4847
DE
Sinn U1 Steel 44mm Black No numerals
Sinn Diving Watch U1 S E
$2,804
Professional dealer
2176
IT
Sinn U1 Steel 44mm Black United States of America, California, Burlingame
Sinn Diving U1 with TEGIMENT Black Dial Red Silicone with...
$2,549
Free shipping
Professional dealer
4495
US
Sinn U1 Steel 44mm Green
Sinn U1
$2,631
Private Seller
 
DE
Sinn U1 Steel 44mm Black
Sinn Diving Watch U1 DE Black Dial Black Silicone Strap with...
$3,817
Professional dealer
951
DK
Sinn U1
Sinn U1 DS Limitiert
$3,242
Professional dealer
9
AT
Sinn U1 Steel 44mm Blue
Sinn U1 B
$2,386
Professional dealer
9086
DE
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Sinn U1: A Watch Made of Submarine Steel

The U1 diving watch from Sinn is perfect for use in seawater thanks to its submarine steel case. These models are water resistant to 1,000 m (100 bar, 3,281 ft), tested by DNV GL, and certified according to European standards for diving watches.


5 Reasons to Buy a U1

  • A robust and scratch-resistant case made of submarine steel
  • Certified by the DNV GL classification society
  • Water resistant to 1,000 m (100 bar, 3,281 ft)
  • Captive diving bezel
  • A crown at 4 o'clock for added comfort

Always Reliable and Ready for Action

Sinn Spezialuhren is famous for crafting timepieces that can withstand extreme conditions. This also applies to the U1, a diving watch for professionals that is water resistant to 1,000 m (100 bar, 3,281 ft). The use of submarine steel for the case means it is also seawater resistant. Unlike with normal stainless steel watches, you don't have to rinse the salt water off it as soon as you leave the sea.

The bezel of the U1 comes with multiple safety measures. First, there's the TEGIMENT technology, which improves its scratch resistance. This process hardens the submarine steel even more, creating a protective coating. Sinn has also attached the bezel to the case using a safety system, meaning it'll never detach upon impact.

Since lighting conditions worsen the deeper you dive, Sinn has given the U1's bezel, hands, and indices a generous coating of bright luminous material. The high contrast on the models with dark dials makes telling the time even easier. This watch's fantastic readability is further enhanced by its 44-mm diameter. There are a number of options for the band, including leather, stainless steel, silicone, and textile. Leather is best suited for use on land, while the others are at home in the water.


How much does the Sinn U1 cost?

Model (ref. number) Price (approx.) Dial color
U1000 (1011.010) 5,700 USD Black
U1 Camouflage (1010.0101) 2,300 USD Earth-tone camouflage
U1 S E (1010.023) 2,300 USD Black
U1 B (1010.0102) 2,200 USD Blue
U1 SDR (1010.040) 2,000 USD Black
U1 (1010.010) 2,000 USD Black

Prices for the U1

You can purchase a pre-owned diving watch from the U1 collection starting around 1,700 USD. This will get you the standard model with a black dial, white indices, and red and white hands. A black silicone strap or stainless steel bracelet keeps these timepieces on your wrist. In mint condition, these automatic watches cost about 300 USD more. The U1 SDR comes with a black PVD coating on its bezel, making its dial seem even larger. New, this timepiece demands around 2,000 USD.

If you prefer retro watches, you should take a look at the U1 S E. The luminous material on its indices, hands, and bezel markings comes in an ivory tone. A black dial matches perfectly to the black PVD coating of the stainless steel case. The final result is a watch that's as retro as it is modern. It's also extremely versatile: A reddish-brown leather strap is a great choice for on land, while a black silicone strap is perfect for any aquatic activities. A mint-condition U1 S E sells for around 2,300 USD.

Military enthusiasts might enjoy the U1 Camouflage. As its name suggests, this diving watch has a camouflage pattern on its dial. It is limited to a run of 500 pieces and comes with both a silicone and a textile strap, each in a matching shade of khaki. You can purchase this timepiece new for about 2,300 USD.

A new member joined the U1 family in 2018: the U1 B with a galvanized blue dial. The galvanizing process takes place when the starting material is dipped in an electrolyte solution. An electrical current is then run through the solution, causing a metallic layer to bind to the material. A matching blue silicone strap lends this timepiece a harmonious feel. This edition costs around 2,200 USD.


Automatic Swiss Movements

The caliber SW 200-1 from the Swiss movement manufacturer Sellita powers every version of the Sinn U1. This automatic movement has a 38-hour power reserve and a date display at 3 o'clock. It also features 26 rubies and ticks at a rate of 28,800 alternations per hour.

Sinn has the calibers certified as resistant to both shocks and magnetism according to the ISO 1413 and ISO 764 standards. A diving watch's movement has to be robust, as professional divers rely on watches to monitor their dive times. For example, should the movement break after hitting against some coral or lose its accuracy after exposure to a magnetic field, the diver might accidentally spend more time underwater than intended. This can have terrible consequences, as they may run out of oxygen before returning to the surface.


Other Sinn Diving Watches

Sinn is considered an authority on diving watches and produces numerous collections for use underwater. For example, the UX has a submarine steel case and is water resistant to 12,000 m (1,200 bar, 39,370 ft). That being said, its quartz movement only guarantees functionality up to 5,000 m (500 bar, 16,404 ft). Compared to other diving watches, that is still an impressive depth. You can call a new UX watch your own for about 2,200 USD.

As a diving chronograph, the U1000 can measure periods of time in depths of up to 1,000 m (100 bar, 3,281 ft). Sinn used the famous ETA Valjoux 7750 as their basis for developing the SZ02 movement. It features a 60-minute counter at 6, a 12-hour counter at 12, and a dual small seconds and date display at 3 o'clock. Prices for a never-worn U1000 sit around 5,700 USD.


The DNV GL and Sinn

Sinn has been having their diving watches inspected and certified by the DNV GL classification society since 2005. Certified models include the T1, T2, U2, and EZM 3. The DNV GL has roots in the shipping industry and is a fusion of Det Norske Veritas (DNV) and Germanischer Lloyd (GL), both founded in the 1860s. Today, the society remains an inspector and advisor for the maritime industry in addition to its work in other industries, such as oil and gas.

In 2006, Sinn asked the DNV GL to classify and certify their diving watches as diving equipment in addition to the standard testing process. It would be an industry first, as no watch had ever been certified as diving equipment according to the European EN250 and EN14143 standards before. Based on these norms, the DNV GL developed two series of tests for the watches. In the end, they passed with flying colors and were certified as diving instruments.