The splendid, eye-catching DS-1 Big Date draws attention straight away. It boasts stylish and radiant coloured dials, meticulous craftsmanship and a Nivachron balance spring that is unaffected by magnetic fields – leaving nothing to be desired.

Technical specifications

Reference
C029.426.11.051.00
Warranty
2-year warranty
Case material
316L stainless steel
Bezel material
316L stainless steel
Glass
Antireflection treatment on one side
Sapphire crystal
Water resistance
Up to a pressure of 10 bar (100 m)
Diameter
41.00mm
Height
11.90mm
Between lugs
20.00mm
Color
Black
Type
Automatic
Model
POWERMATIC 80.651
Features
End of life
80-hr power reserve
Nivachron
Material
316L stainless steel
Buckle material
316L stainless steel
Reference
C029.426.11.051.00
Warranty
2-year warranty
Case material
316L stainless steel
Bezel material
316L stainless steel
Glass
Antireflection treatment on one side
Sapphire crystal
Water resistance
Up to a pressure of 10 bar (100 m)
Diameter
41.00mm
Height
11.90mm
Between lugs
20.00mm
Color
Black
Type
Automatic
Model
POWERMATIC 80.651
Features
End of life
80-hr power reserve
Nivachron
Material
316L stainless steel
Buckle material
316L stainless steel
Domed dial

Crystal clear curves

The rounded dial is reminiscent of watches from the 1960s. A 'fade' effect and sunray finish enhance the intense green tones and give the watch a real sense of depth. A large date display window at 6 o'clock, together with finely faceted wedge-shaped indices and long hands, guarantee easy readability.

Big Date

Big Date

The big date, also called panorama date, is a particularly popular display showing the date in an enlarged date window by means of two discs placed either next to each other or overlapping. This elaborate display allows the date to be read quickly and easily.

Powermatic 80

Powermatic 80 Movement

Power reserve is the time a fully wound mechanical watch runs until it stops - usually between 38 and 42 hours. The Powermatic 80 calibre makes a power reserve of up to 80 hours possible! So you can leave this watch for up to three days before having to set it anew - if you can do without it for that long...

See-through caseback

See-through case back

Certina affords great views of this mechanical timepiece: the case back has a robust watch glass through which to admire the mechanism. The delicately constructed rotor that reliably ensures the provision of energy in all automatic watches is clearly displayed.

Nivachron

Watchmaking 2.0

The beating heart of this model is a Powermatic calibre with an entirely new balance spring made of Nivachron(TM). This innovative material has been developed to increase resistance to magnetic fields. The Swiss-Made balance spring has a titanium base and is therefore exceptionally resistant to temperature variations and incredibly shock-resistant.