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Sinn 903

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Sinn 903 Steel 41.5mm Grey United States of America, Oregon, Portland
Sinn 903 H4 Navigational Chronograph Lemania 1883 Moonphase...
$4,950
Verified Dealer
18
US
Sinn 903 Steel 41mm Black United States of America, California, Burlingame
Sinn 903 St Instrument Chronographs Navigator Black Dial...
$3,689
Free shipping
Verified Dealer
3189
US
Sinn 903 Steel 41mm Black Arabic numerals
Sinn 903 Navigationschronograph 903.040 Revision 2019
$3,263
Verified Dealer
1893
DE
Sinn 903 Steel 41mm Black Arabic numerals
TOP
Sinn 903
$3,351
Private Seller
 
DE
Sinn 903 Steel 41mm Black
Sinn 903 St Der Navigationschronograph Automatik Stahl Ref....
$2,974
Verified Dealer
3491
DE
Sinn 903 Gold/Steel 41.5mm Black Arabic numerals
Sinn Navigationsuhr 903 PL Chronograph 41,5 mm Lemania 1873...
$3,626
Verified Dealer
722
DE
Sinn 903 Steel 41mm Black
Sinn 903 St Navigationschronograph
$3,142
Verified Dealer
829
DE
Sinn 903 Steel 41mm
Sinn 903 HD ST Helmut Sinn Era
Price on request
Verified Dealer
41
DE
Sinn 903 Steel 41mm Brown
Sinn Navitimer 903 FULL SET LIMITIERT auf 50 Ref. 903
$5,416
Verified Dealer
454
DE
Sinn 903 Steel 41mm Blue Arabic numerals
Sinn 903 St B E Navigation chronograph leather strap NEW
$3,131
Verified Dealer
1051
LI
Sinn 903 Steel 41mm Black
Sinn Navigations Chronograph 903.ST
$4,340
Verified Dealer
123
DE
Sinn 903 Steel 42mm
Sinn Navigation 903.14732, Strichindizes, 2008, Sehr Gut,...
$3,264
Verified Dealer
973
DE
Sinn 903 Steel 41mm Black Arabic numerals
Sinn 903 St Navigationschronograph
$3,010
Verified Dealer
31
DE
Sinn 903 Steel 41mm Black
Sinn 903 St Navigationschronograph
$3,687
Verified Dealer
387
DE
Sinn 903 Gold/Steel 41.5mm Black Arabic numerals
Sinn Navigationsuhr 903 PL Chronograph 41,5 mm Lemania 1873...
$4,834
Verified Dealer
722
DE
Sinn 903 Steel 41mm Black Arabic numerals
Sinn 903 ST
$3,687
Verified Dealer
138
DE
Sinn 903 41mm
Sinn ジン 903.PL.GL.24H 903.PL.GL.24H 手巻
$3,434
Free shipping
Verified Dealer
96
JP
Sinn 903 Steel 42mm Black
Sinn Navitimer Ref. 903
$4,811
Verified Dealer
454
DE
Sinn 903 Steel 41mm Blue Arabic numerals
Sinn 903 St B E Navigation chronograph bracelet NEW
$3,494
Verified Dealer
1051
LI
Sinn 903 Steel 41mm Silver No numerals
Sinn 903ST
$3,856
Verified Dealer
132
DE
Sinn 903 Steel 43mm Black
Sinn Navigation Lemania 1873
$4,703
Verified Dealer
209
DE
Sinn 903 41mm Grey No numerals
Sinn 903 H2 Hand Winding Lemania Limited Edition
$4,196
Verified Dealer
91
UK
Sinn 903 Steel 41mm Black
Sinn 903 St
$3,506
Verified Dealer
7417
DE
Sinn 903 Steel 41mm Black
Sinn 903
$3,872
Verified Dealer
31
JP
Sinn 903 Steel 41mm Blue Roman numerals
Sinn 903 St B E
$3,687
Verified Dealer
138
DE
Sinn 903 Steel 41mm Black Arabic numerals
Sinn Navitimer Chronograph - Ref.: 903st - Kaliber 7740 -...
$3,989
Verified Dealer
459
DE
Sinn 903 Steel 41mm Black
Sinn 903 St Instrument Chronographs Navigator Black Dial...
$4,300
Verified Dealer
192
DK
Sinn 903 Steel 41mm Black Arabic numerals
Sinn 903 St Navigation chronograph leather strap NEW
$3,131
Verified Dealer
1051
LI
Sinn 903 Steel 41mm Black
Sinn 903 St Instrument Chronographs Navigator Black Dial...
$3,494
Verified Dealer
1004
JP
Sinn 903 Titanium 41mm Blue Arabic numerals
Sinn Navitimer 903 Titan 200 Stück Bj.1996 35 Jahre Helmuth...
$4,292
Verified Dealer
64
DE
Sinn 903 41mm Black
Sinn [Nagoya] 【SINN】ジン/903/レマニア/1873/クロノグラフ/ゴールド/ブラック/メンズ/手巻き/...
$3,104
Verified Dealer
54
JP
Sinn 903 Steel 41mm Black
Sinn 903 St Instrument Chronographs Navigator Black Dial...
$3,764
Verified Dealer
217
HK
Sinn 903 Steel 41mm No numerals
Sinn 903 Klassik - Navigationsuhr - Mondphase - Limitiert 300...
$6,286
Verified Dealer
459
DE
Sinn 903 Steel 41mm Black Arabic numerals
Sinn Navigationschronograph 903St
$2,841
Verified Dealer
64
DE
Sinn 903 Steel 41mm Black Arabic numerals
Sinn 903 St Navigation chronograph bracelet NEW
$3,494
Verified Dealer
1051
LI
Sinn 903 Steel 41mm Black Arabic numerals
Sinn 903 Navitimer Chrono - 80er Jahre - Handaufzug - 41mm - AAW
$4,715
Verified Dealer
459
DE

Sinn 903: A Navigation Chronograph with a Long History

The navigation chronograph 903 from the Frankfurt-based German watch manufacturer Sinn Spezialuhren is the ultimate tool watch. This charming retro watch can function as a stopwatch and perform mathematical calculations thanks to its slide rule.


5 Reasons to Buy a Sinn 903

  • A navigation chronograph with a slide rule bezel
  • An affordable alternative to the Breitling Navitimer
  • Resistant to low pressure, shocks, magnetism, and water up to 100 m (328 ft)
  • Highly precise Swiss automatic movements refined by Sinn
  • A large selection of leather, steel, and silicone bands

A Retro Chronograph with a Slide Rule

The 903 navigation chronograph has been part of the Sinn Spezialuhren catalog since 1979. Its special features include the ability to measure periods of time and make mathematical calculations and conversions via its slide rule bezel.

The scales for the slide rule around the edge of the dial define the look of this chronograph. The outer portion can rotate in both directions to set the values for whatever calculation you're making. On older models, this took place via the bezel, while current models use an additional crown at 10 o'clock. Other details include a date at 4:30 and three subdials: a 30-minute counter at 3, a 12-hour counter at 6, and a small seconds at 9 o'clock.

Despite its many small numerals and markers, the dial still looks tidy. This is aided by the absence of all the hour numerals except the 12. The other hours are represented by luminous baton indices. Since the hands are coated in the same luminous material, you'll always be able to tell the time, even in the dark.

The retro charm of this elegantly sporty 903 is completed by a steel, leather, or silicone band.


How much does the Sinn 903 cost?

Model Price (approx.) Movement Features
903 H2 4,100 USD Lemania 1872 Bicompax dial
903 H4 Moonphase 3,600 USD Lemania 1883 Four subdials, moon phase, pointer date
903 St GL 24 3,400 USD Lemania 1877 24-hour display
903 St 3,200 USD Sellita SW 500 Date

Detailed Price Information for Current 903 Models

The current Sinn catalog contains three versions of the 903. Bar their dial colors, these 41-mm stainless steel watches are identical. The 903 St stands out the most with its white silver-plated subdials, slide rule bezel, and white indices and hands. All of that contrasts beautifully with the satin galvanized black dial.

Then there's the 903 St Silber. Its entire dial is silver-plated and features black hands and indices. Combined with a leather strap, this model makes a stunning dress watch. The third and final model, the 903 St B R, has a certain retro charm. Its subdials and outer ring are both silver-plated, while the central dial is a luscious dark blue. The hands and indices come in the same ivory hue as aged luminous material.

From a technical perspective, all three models are identical: The automatic Sellita caliber SW 500 ticks inside each watch at a rate of 28,800 alternations per hour. It also provides these watches with their stop seconds mechanism and quick-set date. What's more, each timepiece is water resistant to 100 m (10 bar, 328 ft), shock resistant according to ISO 1413, and anti-magnetic in accordance with the German DIN 8309 standard.

You can purchase a current Sinn 903 in mint condition for between 3,000 and 3,200 USD. That price range falls to 2,100 to 2,500 USD for pre-owned pieces.


Prices for Vintage and Limited Edition 903s

The Sinn 903 has appeared in many variations since its initial release. Some are highly coveted among collectors, such as the 903 H4 Moonphase. This watch is special in many ways: In addition to having subdials for the small seconds, elapsed minutes, and elapsed hours, it also features a fourth subdial at 12 o'clock. This additional subdial serves as both a moon phase indicator and pointer date . The manual Lemania caliber 1883 makes these extra complications possible. You can view this movement at work through the sapphire glass case back. Another deviation from the standard model is the position of the crown that controls the slide rule bezel: On this timepiece, it's at 8 instead of 10 o'clock. A well-maintained example of this collector's item sells for around 3,600 USD.

Another interesting model is the 903 H2. Its dial has only two subdials: a 30-minute counter at 3 and a small seconds at 9 o'clock. It's also powered by a Lemania movement, namely the manual caliber 1872. Fewer than 100 copies of this watch were ever produced, meaning it's extremely rare today. Plan to spend about 4,100 USD on this timepiece.

The 903 GL 24 is also a popular collector's item. Instead of the usual 12-hour display, it shows the time using a 24-hour display. This means the hour hand needs one full day to complete one rotation. It gets its power from the manual Lemania caliber 1877. While this model lacks a date display, it does still have the slide rule function, which is operated via the bezel. Depending on its condition, expect to pay anywhere from 3,400 to 4,000 USD on this watch.

Collectors also enjoy standard models from previous decades. Watches from the early 1980s with the manual Valjoux caliber 7740 cost around 3,300 USD in good condition. You can save some money by purchasing a timepiece from after the turn of the millennium powered by the automatic Valjoux 7750. These watches sell for about 2,900 USD.


The History of the Sinn 903

The Sinn 903 is often incorrectly considered a copy of the Breitling Navitimer. If you look at them next to one another, the similarities are truly astonishing. However, there's a simple explanation for this:

At the height of the quartz crisis, Breitling was in financial distress. They had to close the majority of their production sites and all but stopped making watches. Businessman Ernst Schneider ended up buying the rights to the Breitling name and brand, but had no desire to take on their facilities, components, or movements. Helmut Sinn recognized the opportunity and purchased a large portion of the remaining components and movements, thus guaranteeing himself the right to continue building the watch under his own name.

In reality, the Sinn 903 is the twin sister of the Navitimer. It is an affordable alternative to the original and has developed into its own model with its own special features since its debut in 1979.


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