With the bright orange GMT hand and the option of a matching Cordura strap, I’d likely lean toward the black dial model as I like the way the bezel matches the matte dial. Those looking for something a bit less conventional can always opt for the green. I borrowed a similarly sized C60 Trident Lumière a while back and was very impressed by the build quality, the sizing, and definitely the lume.
With this model costing a bit less than the Trident Lumière ($2,470 on a bracelet) while adding a useful complication, I wouldn’t be surprised if the new C63 Sealander Extreme GMT proves to be a very popular model for Christopher Ward as the brand continues to expand its enthusiast-driven lineup.