Black November 2025
Many of you have been asking about whether we’ll be doing a Black November event this year. Well, I’m not sure where this year has gone, but it’s that time once again! We can’t say...
Sinn 903 St II Navigation Chronograph - Steel Bracelet - Black Dial
- Regular price
- $6,653.00 CAD
- Regular price
-
- Sale price
- $6,653.00 CAD
- Unit price
- per
Sold out
Tap to zoom
()
Sinn 903 St II Navigation Chronograph - Steel Bracelet - Black Dial
Selected Colour: Black
-
Black
-
Blue
- Regular price
- $6,653.00 CAD
- Regular price
-
- Sale price
- $6,653.00 CAD
- Unit price
- per
Out of Stock
Couldn't load pickup availability
Risk free
90 Day Returns
Carbon neutral delivery
Express delivery
More Of Our Favourite Watches
- Regular price
- $3,562.00 CAD
- Regular price
-
- Sale price
- $3,562.00 CAD
- Unit price
- per
Sold out
New
- Regular price
- $1,310.00 CAD
- Regular price
-
- Sale price
- $1,310.00 CAD
- Unit price
- per
New
- Regular price
- $1,310.00 CAD
- Regular price
-
- Sale price
- $1,310.00 CAD
- Unit price
- per
New
- Regular price
- $1,310.00 CAD
- Regular price
-
- Sale price
- $1,310.00 CAD
- Unit price
- per
New
- Regular price
- $1,310.00 CAD
- Regular price
-
- Sale price
- $1,310.00 CAD
- Unit price
- per
New
- Regular price
- $1,310.00 CAD
- Regular price
-
- Sale price
- $1,310.00 CAD
- Unit price
- per
New
- Regular price
- $4,743.00 CAD
- Regular price
-
$6,775.00 CAD - Sale price
- $4,743.00 CAD
- Unit price
- per
Sale
- Regular price
- $3,694.00 CAD
- Regular price
-
- Sale price
- $3,694.00 CAD
- Unit price
- per
- Regular price
- $564.00 CAD
- Regular price
-
$1,037.00 CAD - Sale price
- $564.00 CAD
- Unit price
- per
Sold out
- Regular price
- $5,484.00 CAD
- Regular price
-
- Sale price
- $5,484.00 CAD
- Unit price
- per
The 903 series is presented in a version that has been technically completely redesigned. Visually recognisable, the navigation chronograph 903 St II is available as a standard model with an electroplated black dial with sunburst decoration and has been elevated to an unparalleled technical level. The functionally designed dial imprints the navigation chronograph in our product range with decades of tradition. For example, the slide rule bezel with a logarithmic scale can be used to calculate times, distances or fuel consumption. Of particular note is the use of hybrid ceramic luminous elements in the indices, which are meticulously attached by hand, the number 12 and the hour and minute hands. By integrating the illuminating pigments into the respective hybrid ceramic moulded part, a high concentration of illuminant is achieved, resulting in extreme light intensity and perfect readability in the dark.
However, the redesign of the case of the 903 St II, in particular, once again demonstrates our company's high level of innovation. This case features a silver-electroplated bezel which can be smoothly operated from the outer diameter of the watch. The impressive water resistance of 20 bar testifies to a feat of engineering that has long shaped the SINN brand. The Tri-Compax arrangement of the silver-electroplated counters completes the classic navigation chronograph's design. The crowning glory of this model is its column wheel chronograph movement, which has a power reserve of at least 60 hours when fully wound. Watch connoisseurs will immediately recognise that the SINN logo as an appliqué is another fine detail of a consistently sophisticated watch.
Technical details
Mechanical Movement
- LJP L110
- Self-winding mechanism
- 26 bearing jewels
- 28,800 semi-oscillations per hour
- Seconds stop function
- Anti-magnetic as per DIN 8309
Case
- Case made of stainless steel, polished / brushed
- Sapphire crystal glass in front, anti-reflective on both sides
- Transparent case back made of sapphire crystal glass, anti-reflective on the interior
- Case back screw-fastened
- Winding crown screwable
- Meet the technical requirements for water-resistance, as set out in standard DIN 8310
- Water-resistant and pressure-resistant to 20 bar
- Low pressure resistant
Functions
- Hours, minutes, subsidiary seconds
- Date display
- Chronograph
- Bezel with a logarithmic scale and slide rule function
Dimensions and Weight
- Case diameter: 41mm
- Band lug width: 22mm
- Case thickness: 14.5mm
- Weight without strap: 84g
Dial and Hands
- Black electroplated dial with decorative sunburst
- Number “12” and indices made of hybrid ceramic luminous elements, meticulously attached by hand
- Hour and minute hand-made of hybrid ceramic luminous elements
Warranty
- 2 years
| Watch Case Back | Screw-down with sapphire display back |
|---|---|
| Watch Case Colour | Silver |
| Watch Case Finish | Brushed and Polished |
| Watch Case Material | Stainless Steel |
| Watch Case Crown | Screw-down |
| Watch Dial | Multi-Layer |
| Watch Diameter | 41mm |
| Watch Functions | Hours, minutes, seconds, date, chonograph |
| Watch Glass | Sapphire with AR coating |
| Watch Movement Type | Automatic |
| Watch Style | Chronograph |
| Watch Thickness | 14mm |
| Watch Water Resistant | 200 Mtrs (20ATM) |
Why choose WatchGecko?
- Over a decade of experience.
- An internationally renowned destination for watch enthusiasts.
- A trusted choice for new buyers entering the world of horology.
- Our passion for watches inspires us to craft straps that enhance timepieces, blending style and functionality seamlessly.
Latest blog posts
The Best NOMOS Release of 2025? The NOMOS Worldtimer 'Trace'
Earlier this year, the brilliant new NOMOS Worldtimer caught the attention of watch journalists across the globe. A brand-new watch with an innovative method of telling the time across multiple time zones. Launched in a wide...
How Are Luxury Straps Made: An Inside look at the LIC Factory
Over our 15-year history we have learned a lot about what goes into making the very best leather watch straps. Constantly refining and evolving our offering to ensure that every single strap that leaves our...
Direnzo x Sophie Cassaro: Space Girl and the Joy of Serious Fun
There’s a moment in every good collaboration where two creative worlds align; one grounded in tradition, the other orbiting joyfully in imagination. That’s precisely what happened when Sergio Direnzo, the founder and designer behind Direnzo Watches,...
Damascus Goes Dressy: The New McQuaide C1
McQuaide watches make Damascus steel watches that are designed and assembled right here in the UK. Their designs are big and bold which has helped the brand be included in the British independent brand discussion....