Rado Florence R48903103, 39mm, Grey Dial

The Rado Florence Open Heart is a unisex Swiss automatic dress watch with a restrained, polished look. It suits anyone who wants a slim, understated piece for office and evening wear.

The 39 mm stainless steel case combines brushed and polished surfaces under a curved sapphire crystal. Inside sits an automatic Swiss movement with an antimagnetic Nivachron hairspring. Water resistance is rated at 5 bar, or 50 m, which covers splashes and light rain.

The standout detail is the 80 hour power reserve, which lets the watch sit unworn over a weekend and still keep running. The grey dial carries an embossed pattern with rhodium coloured applied indexes, and the polished steel bracelet closes with a 3-fold clasp for a clean, secure fit.

Florence is Rado's quietly elegant dress line, and the Open Heart version suits people who want a slim unisex watch that does not shout. Its 39 mm size works on a wide range of wrists, and the grey dial keeps things understated.

The key technical story is the 80 hour power reserve paired with an antimagnetic Nivachron hairspring. Together they mean the watch keeps running through a weekend off the wrist and resists everyday magnetic fields from phones and laptops. The curved sapphire crystal and stainless steel case add scratch resistance and a polished finish.

The trade-off is water resistance. At 5 bar, or 50 m, it handles splashes and rain but is not meant for swimming or showering, so a diver or sports watch is a better pick for the water. The 3-fold clasp on the polished bracelet is neat, though polished links will show fine scratches over time.

It suits anyone who wants a refined Swiss automatic for office and dinners, men or women. Alternatives in the same dress category include other Swiss automatics with date windows or leather straps if a softer look is preferred over this embossed grey dial.