TRI-03 – Power Reserve GMT COSC – Gold/Cream/Black
TRI-03 – Power Reserve GMT COSC – Gold/Cream/Black
TRI-03 – Power Reserve GMT COSC – Gold/Cream/Black
TRI-03 – Power Reserve GMT COSC – Gold/Cream/Black
TRI-03 – Power Reserve GMT COSC – Gold/Cream/Black
TRIBUS watches TRI-03 Power Reserve GMT COSC exploded diagram
TRI-03 – Power Reserve GMT Chronometer packaging
  • SKU: TRI-03-PVDG-10-L21

Power Reserve GMT COSC


($2,809.20 VAT incl.)

VAT, if applicable will be added at checkout.
Pre-order your TRIBUS watch for early-May
In the TRI-03 Power Reserve GMT COSC, form and function exist in equal measure. The TRI-03 can track multiple timezones simultaneously, with an indicator displaying what remains of its 42-hour power reserve. Because in our world, accuracy is everything.

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  • Chronometer-certified
  • Movement: Soprod C115
  • 31 jewel self-winding mechanical movement
  • GMT functionality
  • Independently adjustable 24-hour hand
  • 42 hour power reserve complication
  • Hacking seconds
  • Anti-shock system
  • Frequency: 4Hz (28,800 vibrations per hour)
  • Timing tolerance: -4/+6 seconds per day

  • Brushed and polished PVD gold 316L stainless steel case
  • Domed sapphire crystal with anti-reflective coating (front and back)
  • Screw-down exhibition caseback
  • Polished screw-down crown with debossed TRIBUS logo
  • Engraved serial number
  • Diameter: 41mm
  • Height: 12.09mm
  • Lug to lug: 50.5mm
  • Strap width: 20mm
  • Water resistance: 15 ATM (150 metres)

  1. Power reserve indicator
  2. Polished hands
  3. >Matte cream dial
  4. GMT sub-dial
  5. Polished and faceted indexes


  • 20mm black Italian leather strap
  • PVD gold stainless steel dress clasp with engraved TRIBUS logo
  • Quick-release pins for easy changing

Make an impression with the TRI-03 Power Reserve GMT COSC. Combining a suave aesthetic with dual-time functionality, whether you’re travelling for business or that city break, the TRI-03 will always be in its element..

Founded upon the retro-temporary aesthetic of the TRIBUS collection, the TRI-03 is one-part classic styling, another part technical brilliance. Its dial is both dressy and functional: a power reserve subdial at 12 o’clock displays what remains of its Soprod C115 movement’s power reserve, while the GMT subdial below allows the tracking of a second timezone. Its GMT hand is operated independently through a mechanism integrated into the TRI-03’s case.

A watch that displays our commitment to Switzerland’s watchmaking capabilities, the TRI-03’s case and movement have been crafted there; visible through an exhibition caseback, its Soprod C115 movement has also been certified by the famous Contrôle Officiel Suisse des Chronomètres. It operates in the top 6% of all Swiss-made watches for accuracy, offering precision within -4/+6 seconds per day. The TRI-03 Power Reserve GMT COSC is a piece of engineering that’s as beautiful on the inside as it is out.


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