- Case made of stainless steel, polished
- Sapphire crystal glass
- Transparent case back made of sapphire crystal
- Pressure-resistant to 20 bar (= 200 m water depth)
- Low pressure resistant
Shipping costs, taxes and customs duties
Price incl. tax plus shipping costs
New watch deliveries are free of shipping costs within Germany. For delivery to European Union (EU) Member States, we charge EUR 80.00 and for deliveries to all other countries we charge EUR 120.00 shipping costs. For bracelets and accessories we charge EUR 6.50 within Germany, EUR 30.00 to European Union (EU) Member States and EUR 50.00 to all other countries.
Shipping costs for service and spare parts can be found in the service price list.
For deliveries within the European Union (EU), the VAT rate of the supplier country is charged. Deliveries outside the EU are shipped VAT-free.
For deliveries outside the EU, additional customs duties and fees may apply. Please check the relevant customs regulations with the respective customs authorities.
Which watches aren't designated as 'classics' these days? This valued label is applied to many timepieces. Yet very few really set standards of style in functional design and first-class technology. If this term were ever applicable to a watch, then most certainly to the Sinn model 103 A Sa. The chronograph features the Valjoux 7750 mechanical movement with automatic winding. The polished stainless steel case perfectly matches the classic style of the watch.
![](https://www.sinn.de/out/pictures/generated/product/11/640_360_100/sinn_103_a_sa_k.jpg)
Technical details
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Anti-magnetic as per DIN 8309
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
Crown screwable
Push-pieces screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 20 bar
Low pressure resistant
Date display
Day of the week display
Chronograph
Pilot’s bezel with minute ratcheting and luminous key mark
Band lug width: 20 mm
Case thickness: 17 mm
Weight without strap: 88 gramme
Indices coated with luminescent colour
Hour, minute and stopwatch second hand coated with luminescent colour