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Top-tier supplier movement · caliber ETA C07.611 Powermatic 80: Swiss automatic, 21,600bph, 80h PR, 21j; used in Certina DS-1 and DS-Action; Swatch Group 80-hour platform; silicon hairspring available · 80h power reserve (3.3 days)
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
41 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.

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Authentication

The C07.611 with silicon hairspring is the value proposition of the DS-1 Powermatic 80; any DS-1 with a standard ETA 2824 is a service replacement that changes the watch's anti-magnetic character.

Known issues in the market
  • The C07.611 and ETA 2824 share a similar layout; verify the 80h reserve by running the watch down and timing the actual reserve duration.
AreaWhat to checkWhat is correctRed flag
movementETA C07.611 movement architectureETA C07.611 visible through caseback with Certina-signed rotor; 80h reserve confirmed by run-down testStandard ETA 2824 movement (38h); non-genuine C07 movement swap
dialDS-1 dial proportionsClean dial proportions consistent with DS-1 dress-sport specificationIncorrect subdial layout or text inconsistent with DS-1 specification
casebackCertina signed casebackCertina signed caseback with correct reference numberGeneric caseback or non-matching reference number
Common legitimate replacements
  • Crystal; sapphire standard.
  • Crown; Certina-signed.
Expert resources: Certina authorized service; Certina DS-1 product documentation.

Authentication guide

Last reviewed June 2026

The DS-1 Powermatic 80 is Certina's core dress sports watch built around the Swatch Group A20.L movement. The DS rubber ring inside the caseback is the brand's defining structural feature.

Known reproduction risks

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LOW

The DS-1 is not a counterfeit target. Its price point makes fake production uneconomical.

  • Any claimed DS-1 with a date quick-set is using a different movement
  • Dial text on replicas is typically bolder and less precise than the original

Dial variants by era

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EraDescriptionIdentifiers
2015 to present (PM80 generation)Classic round case, 41mm. Applied Certina logo and baton markers. Date at 3. "DS" printed on dial. Available in silver, blue, and black dials.
  • "DS Powermatic 80" text printed on dial below 6 o'clock
  • Certina logo (turtle-shell C) printed at 12 o'clock
  • Baton hour markers have a slight taper; replica dials use uniform-width batons

Service part flags

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DS Gasket

Original: The Double Security rubber ring sits inside the caseback channel, providing a secondary water resistance seal.

Replacement tells
  • A DS ring missing after service is not catastrophic for the movement but means the watch no longer meets DS specification
  • Aftermarket gaskets without the Certina DS profile are common service substitutions; a watchmaker should source genuine parts
Crown

Original: Screw-down crown with Certina turtle-shell logo.

Replacement tells
  • Unsigned crown is an aftermarket replacement
  • Crown that does not screw down fully suggests stripped threads in the tube or mismatched service part

Case back markings

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2015 to present
  • "CERTINA DS Powermatic 80" with turtle-shell logo
  • Reference number and serial number
  • "Swiss Made", "Water Resistant" with depth rating
  • The DS ring is visible as a step or lip inside the caseback channel when the back is removed

Movement tells

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  • Movement is Swatch Group A20.L (ETA C07.611 base); 80-hour power reserve is the distinguishing spec.
  • A DS-1 PM80 with less than 60 hours reserve when fully wound indicates a worn mainspring.
  • The movement does not have a quick-set date; date is advanced by rotating the crown through 12-hour cycles. A quick-set date function means a movement swap.
  • Balance wheel is a twin-barrel design enabling the 80-hour reserve; a single-barrel movement is an incorrect swap.
Sources: Certina DS-1 product page.

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