Sinn 903 II
Sinn 903 St II
© Sinn
Sinn 903 St II G
© Sinn
Sinn 903 Ti II
© Sinn
903 II is a chronograph series from Sinn.
This is a further development of the predecessor series 903, again called “The Navigation Chronograph.” The 903 St II model was named “Watch of the Year 2025” by the German magazine Armbanduhren.
There are several versions available with different case materials and dial colors:
| 903 St II | Steel | Black, electroplated, with sunburst finish |
| 903 St II B E II | Steel | Blue, electroplated, with sunburst finish |
| 903 St II G | Steel | Green, electroplated, with sunburst finish |
| 903 St II A | Steel | Anthracite, electroplated, with sunburst finish |
| 903 Ti II Anniversary | Titanium | Dark blue, electroplated, with sunburst finish |
| 903 St II HB | Steel | Light blue, electroplated, with sunburst finish |
Movement:
- Column-wheel chronograph
- 28 jewels
- Power reserve min. 60 h
Case:
- Stainless steel, polished/satin-finished
- Ø 41 mm, H 14.5 mm
- Integrated rotating bezel with logarithmic scale
- Sapphire crystal, anti-reflective on both sides
- Sapphire crystal case back, anti-reflective on the inside
- Water-resistant to 20 atm, vacuum-resistant
Dial:
- Electroplated, various colors depending on the model
- “12” numeral and hour markers made of hybrid ceramic luminescent elements, applied by hand
- Hour and minute hands made of hybrid ceramic luminescent elements
Functions
- Hours, minutes, small seconds with stop-seconds
- Date
- Chronograph 12-hour counter, 30-minute counter, 60-second counter
- Slider function
Warranty:
- 2 years
Price (2026):
- starting at €3,350