A quick comparison of the RM001 and RM027 tourbillons...
The RM001 uses a V shaped bridge anchored on one side of the base plate. This design was intended to resist shocks by acting almost like a racing car wishbone suspension. I’m sure it’s not in any way functional on the rep but does look great and is faithfully reproduced. The tourbillon is harder to see as it’s behind not one but two crystals so reflections are more of an issue, and the bridge has a large cap over the centre of the tourbillon.
Meanwhile the RM027 has a slightly more conventional bridge, forming a slight V shape again, but anchored on either side. The bridge has more than a hint of industrial girder about it with rectangular cutouts to save weight, and in a more traditional tourbillon style it features a pink jewel at its centre. Thanks to the single heavily AR’d crystal and ample space around the tourbillon it is easily visible from all angles which helps give the watch a lightweight appearance, all full of air.
The balances themselves both have inertia weights (can’t see them on the RM001 as it’s running) which are a nice touch and I always think they look better and more expensive and impressive than un-weighted balance wheels. I must say I prefer the gunmetal grey balance wheel on the RM027, we are so used to seeing gold tourbillons and it’s nice to see something different and more contemporary.
I prefer the bridge arrangement on the RM001 as it’s so different, and I prefer the actual tourbillon on the RM027 for it’s contemporary appearance. Overall I’d have to give the win to the RM027 mainly because of how easily visible and airy it looks.
DC