“The U-series divers and the EZM tactical line are the brand’s most-distinctive references; the 556 and 856 lines anchor the everyday-wear catalog.”

GRAIL ATLAS · SinnShare

Photo by Hans Koberger (CC BY 4.0), via Wikimedia Commons

Frankfurt am Main, Germany

Sinn

Brand history

Founded by the pilot and flight-instructor Helmut Sinn in Frankfurt am Main as a maker of pilot and navigation chronographs; sold to Lothar Schmidt in 1994, who introduced the Ar-dehumidification, tegimented case-hardening, and submarine-steel technologies the brand is now known for.

Founded 1961 in Frankfurt am Main by the pilot and flight-instructor Helmut Sinn as a maker of pilot and navigation chronographs for the Bundeswehr and adjacent customers. Sold to Lothar Schmidt in 1994; the modern brand is defined by its engineering vocabulary. Ar-dehumidification (a captive desiccating capsule that keeps the case dry through temperature swings), tegimented case-hardening, and patented submarine-steel cases. The U-series divers and the EZM tactical line are the brand’s most-distinctive references; the 556 and 856 lines anchor the everyday-wear catalog.

• 
  556 I · 556.010

  luxuryneo-vintageSellita SW200-1: Swiss automatic, ETA 2824-2 functional equivalent, 28,800bph, 38-41h PR (38 min, 41 typical), 26j; used across many mid-range tool watch brands38.5mm2002–presenteditorial
  Open
• 
  856 UTC · 856.012

  luxuryneo-vintageETA 2893-2: Swiss automatic GMT, 28,800bph, 42h PR, 21j; third time-zone hand; used in Sinn 856 and Sinn U2; reliable workhorse GMT caliber40mm2009–presenteditorial
  Open
• 
  U1 · 1010.010

  luxuryneo-vintageSellita SW200-1: Swiss automatic, ETA 2824-2 functional equivalent, 28,800bph, 38-41h PR (38 min, 41 typical), 26j; used across many mid-range tool watch brands44mm2005–presenteditorial
  Open
• 
  EZM 13 · 613.010

  luxuryneo-vintageETA/Valjoux 7750: Swiss automatic chronograph, 28,800bph, 42h PR, 25j; cam-and-lever system (column-wheel optional), workhorse chronograph ebauche41mm2008–presenteditorial
  Open
• 
  103 St Sa · 103.061

  luxuryneo-vintageETA/Valjoux 7750: Swiss automatic chronograph, 28,800bph, 42h PR, 25j; cam-and-lever system (column-wheel optional), workhorse chronograph ebauche41mm2003–presenteditorial
  Open
• U2 · 1020.010

  luxuryneo-vintageETA 2893-2: Swiss automatic GMT, 28,800bph, 42h PR, 21j; third time-zone hand; used in Sinn 856 and Sinn U2; reliable workhorse GMT caliber44mm2007–presenteditorial
  Open
• 
  6068 Frankfurt Financial District Chronograph · 6068.B

  luxuryneo-vintageETA/Valjoux 7750: Swiss automatic chronograph, 28,800bph, 42h PR, 25j; cam-and-lever system (column-wheel optional), workhorse chronograph ebauche41mm2009–presenteditorial
  Open

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