====== Sinn 144 GMT ====== {{wst>image_r|Sinn_144_GMT_St|Sinn 144 GMT St}} {{wst>image_r|Sinn_144_GMT_Ti|Sinn 144 GMT Ti}} **144 GMT St / 144 GMT Ti** are [[chronograph]]s by [[Sinn]] with [[GMT]] function. The **144 GMT** is a reliable [[chronograph]] by [[Sinn]] with the proven and robust [[self-winding]] movement [[Valjoux 7750]] and a [[second time zone]], which proves to be particularly useful for long-haul flights. **Movement:** * [[Self-winding]] movement [[Valjoux 7750]], 28,800 A/h * 25 [[jewels]] **Case:** * [[Stainless steel]] / [[titanium]], silk-mat * Ø 41 mm, height 14.5 mm * [[Sapphire crystal]]; screw-down caseback with [[sapphire crystal]] (optional); both [[sapphire crystal]]s with [[anti-glare treatment]] on both sides * [[Screw-in crown]], double-sealed * [[Waterproof]] and pressure resistant up to 200 m * Safe below atmospheric pressure **Dial:** * Black * Internal [[tachymeter]]/[[pulsometer]] scale * Hands and indexes with the highest luminosity **Functions:** * [[Small seconds]], central stop minutes, jumping 30 minutes counter, 12 hours counter * Date at 3 o'clock * [[Dual time zone]] **Bracelet:** * Solid bead-blasted [[stainless steel]] bracelet / silk-mat [[titanium]] bracelet with folding overall extension * Optional cowhide leather strap {{tag>Watch_models GMT_watches Chronographs Sinn_Instrument_Chronograph_models}}