Specialist dealers


  • U1 C

    Exclusive special edition for the specialist watch magazine Chronos.

    U1 C
  • U1 C
  • U1 C
  • U1 C


Warranty period leer years

Warranty Statement


Product number: 1010.0254 PDF

U1 C

This model is no longer available in our current range.
U1 C

With specialist watch magazine Chronos, we’re presenting the U1 C special edition with dark green dial and Black Hard Coating, which is limited to 100 pieces.

We use this coating exclusively for cases featuring surface hardening with TEGIMENT technology. It’s this combination alone that ensures the high quality of the colour coating. 

With the striking form, reduced displays and clear readability, the U1 C focuses on key details. The stylish dark green dial is especially eye-catching and really comes into its own in combination with the black case, whilst the dark green gradient centred around the midpoint of the dial creates an exciting play of colour. The vintage-style black cowhide strap with green accents completes this design to perfection. 

The U1 C case is made from high-strength German Submarine Steel, which is highly resistant to saltwater and boasts outstanding non-magnetic properties. The diver’s bezel with minute ratcheting has a captive connection to the case, preventing the rotating bezel from detaching as a result of hard knocks.

DNV GL has verified and certified the U1 C’s pressure resistance to a diving depth of 1,000 metres and its temperature resistance and functionality in accordance with the European diving equipment standards.

Special characteristics
  • Exclusive special edition for the specialist watch magazine Chronos
  • Limited to 100 pieces
  • Case and crown made of high-strength seawater-resistant German Submarine Steel
  • Black Hard Coating on a TEGIMENT Technology basis
  • Tested based on European diving equipment standards and certified by DNV GL
  • Captive diver's bezel with minute ratcheting
  • Crown at 4 o'clock to prevent pressure on the back of the hand
  • Sapphire crystal glass
  • Waterproof and pressure-resistant to 1,000 m diving depth (= 100 bar), certified by DNV GL
  • Low pressure resistant

  • Watch including leather strap, cowhide in Vintage-Style, black, decorative seam green
  • Price: 2390,00 €

Technical details

ETA 2824-2
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
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 made of German Submarine Steel, black
Sapphire crystal glass in front, anti-reflective on both sides
Case back screw-fastened
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Waterproof and pressure-resistant to 1,000 m diving depth (= 100 bar), certified by DNV GL
According to the technical demands for the German diving norm DIN 8306
Tested based on European diving equipment standards EN 250 / EN14143 and certified by DNV GL
Low pressure resistant
Hours, minutes, seconds
Diver’s bezel with minute ratcheting and luminous key mark
SINN Technologies
Black Hard Coating on a TEGIMENT Technology basis
Captive diver's bezel
Dimensions and Weight
Case diameter: 44 mm
Band lug width: 22 mm
Case thickness: 14.7 mm
Weight without strap: 113 gramme
Dial and Hands
Dark green dial
Indices coated with luminescent colour
Hour, minute and second hand coated with luminescent colour

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Warranty statement

In addition to the statutory warranty, we – Sinn Spezialuhren GmbH, Wilhelm-Fay-Strasse 21, 65936 Frankfurt am Main – provide a manufacturer’s warranty against material and manufacturing defects for the watch U1 C.

The warranty period is leer years.

The warranty period is calculated from the invoice date.

Our warranty is applicable worldwide.

If you wish to make a warranty claim, we will repair the watch for you at no additional cost.

Warranty claims are excluded in the event of damage caused by:

  • Improper use
  • Repairs or attempted repairs which were not carried out by us or our authorised partners. A list of authorised partners can be found in the Sales and Service Partners menu on our website
  • Signs of wear and tear, especially to straps
  • The use of force (blows, knocks, impact)

Please inform us – Sinn Spezialuhren GmbH by phone +49 (0) 69/97 84 14-400 or email – as soon as you are aware of the potential warranty claim to avoid further damage. In order to approve the warranty, we will need the watch and proof of purchase (invoice) with a detailed description of the damage.

In the event of a warranty claim, we bear the costs of sending and returning the watch as well as the transport risk, provided that the transport is carried out by the transport company specified by us and the watch has been securely packaged. Please contact us by phone +49 (0) 69/97 84 14-400 or email Otherwise, as the customer, you will bear the costs of the shipment and the transport risk.

Any costs incurred for customs duties, import duties and other fees incurred when the watch is returned to the recipient country must be borne by the recipient.

We provide this warranty in addition to your existing statutory rights for defects. These rights are not restricted by the warranty and they can be exercised free of charge.

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