I think I am sold on brown... this is a new Hadley Roma and so long as it's comfortable will be the strap for a while. Tried to get something to bring out the patina on the markers.
These Hermes Ebene straps work great on the Chocolate dials...
Second favorite strap [first favorite is previously posted Omega replica NASA strap] for Speedy is the "ChuckMK23 Mt. Baker Band"...which was a gift from @ChuckMK23. It's not marked or branded so the source is unknown. It's constructed of sage green and black Velcro/nylon and is extremely comfortable...especially in hot/humid weather.