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C9 5 Day Automatic

43mm version

Housing our very own Calibre SH21 movement, which has a power reserve of 120 hours, this quintessentially English watch is a subtle, but strong statement.


Embossed leather strap - Bader deployment - 22mm Black
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  • Description

    This watch is arguably the most important from a British brand in more than 50 years.

    Yes, it has a timelessly elegant aesthetic and premium quality components - but that's true of all our C9 collection. What sets this watch apart is our in-house movement, Calibre SH21, delivering 120 hours of power at chronometer levels of accuracy when fully wound.

    The brainchild of our master watchmaker, Johannes Jahnke, on its release SH21 prompted the CEO of a very famous Swiss watch brand to say, "What gives you the licence to do that?"

    Even if it's the timeless beauty of the aesthetic or the undoubted quality of its components that first draws your attention, you'll also have the quiet satisfaction in knowing you're wearing a piece of British watchmaking history.
  • Movement

    Launched in 2014, our in-house movement, Calibre SH21, was the first entirely new mechanical movement by a British watch brand since the 1950s.

    Our master watchmaker, Johannes Jahnke, conceived and developed SH21 using baukasten design principles and the goal of producing a robust, reliable movement.

    The 164 separate parts that make up SH21 include two barrels that provide an incredible power reserve of five days when fully wound.
  • Diameter: 43mm
  • Height: 13.45mm
  • Calibre: SH21 automatic
  • Vibrations: 28.800 vph
  • Timing tolerance: -4/+6 seconds per day
  • Case: 316L stainless steel
  • Water resistance: 5 bar
  • Strap width: 22mm
  • Strap length: 110mm x 90mm
  • Lug to Lug: 51.5mm
  • In-house calibre SH21 automatic movement (100% Swiss made)by Johannes Jahnke
  • COSC certified chronometer
  • Twin barrel construction in a series connection
  • 120 hour power reserve
  • 31 jewels
  • Date display at 3 o'clock
  • Full tungsten automatic rotor with ball bearings
  • Continuous central second
  • Stop-second hacking mechanism
  • Galvanic sun-ray one-piece metal dial with raised nickel indexes and nickel hands
  • Hand finished, surgical grade, stainless steel case and crown
  • Museum-grade sapphire crystal with AR08 anti-reflective coating
  • Screw-down transparent case back with full diameter AR08 anti-reflective sapphire crystal
  • Embossed alligator pattern Italian leather strap
  • Luxury presentation case and owner's handbook