- Case made of stainless steel, bead-blasted
- Magnetic Field Protection up to 80,000 A / m
- Captive pilot's bezel with minute ratcheting
- Sapphire crystal glass
- Nickel-free case back
- Pressure-resistant to 20 bar
- 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.
657
Based on the 656 model range, and designed as a functional instrument watch in the tradition of our cockpit navigation clocks, this pilot's watch also features a pilot's bezel which permits its wearer to measure or check set time intervals.
This is a decisive criterion particularly in aviation — reason enough for us to give this important function a superior design.
The stainless steel pilot's bezel with minute ratcheting can be rotated on both sides and features a special mechanical system developed by Sinn to protect against loss.
The labelling is silver on an inset, black anodised aluminium ring to ensure optimal scale readability. A luminous triangle serves as the 0 / 60 minute mark.
Special characteristics
Technical details
Mechanical Movement
ETA 2824-2
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN ISO 1413
Anti-magnetic as per DIN 8309
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN ISO 1413
Anti-magnetic as per DIN 8309
The information on the mechanical movement corresponds to the current production situation in Frankfurt am Main. Due to technical changes, it may happen in individual cases that stock items of our sales partners deviate from this information.
Case
Case made of stainless steel, bead-blasted
Sapphire crystal glass in front, anti-reflective on both sides
Case back screw-fastened, nickel-free
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 20 bar
Low pressure resistant
Sapphire crystal glass in front, anti-reflective on both sides
Case back screw-fastened, nickel-free
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 20 bar
Low pressure resistant
Functions
Hours, minutes, seconds
Date display
Pilot’s bezel with minute ratcheting and luminous key mark
Date display
Pilot’s bezel with minute ratcheting and luminous key mark
SINN Technologies
Captive bezel
Magnetic Field Protection up to 80,000 A/m
Magnetic Field Protection up to 80,000 A/m
Dimensions and Weight
Case diameter: 41 mm
Band lug width: 20 mm
Case thickness: 12 mm
Weight without strap: 77 gramme
Band lug width: 20 mm
Case thickness: 12 mm
Weight without strap: 77 gramme
Dial and Hands
Glossy black dial
Numbers and indices coated with luminescent colour
Hour and minute hand coated with luminescent colour
Numbers and indices coated with luminescent colour
Hour and minute hand coated with luminescent colour
