Jazzmaster Open Heart Automatic Blue Dial Stainless Steel Men's Watch H32705141

The blue dial changes quite a bit through the day. Under office lighting, it can take on a darker navy appearance. Natural daylight brings more brightness across the surface. The silver hands remain easy to follow in either setting, and the luminous treatment helps after the lights go down. There is plenty to look at, though reading the time still comes naturally. That sounds obvious for a watch, but open dials can sometimes make you work for it.

Hamilton’s H-10 automatic movement gives this Jazzmaster around 80 hours of power reserve. Leave it aside through most of a weekend and it can still be running when you pick it up again. The open dial gives a partial view from the front, then the transparent caseback reveals more of the movement from behind. You get two different views of the mechanics, each one framed in its own way. It becomes easy to turn the watch over before putting it back on.

The stainless steel bracelet has brushed and polished sections that match the case. Its folding clasp keeps the closure close to the wrist and gives the bracelet a finished appearance from either side. The steel adds enough structure for work clothes, and the blue dial keeps the watch from looking overly formal.

This Hamilton Jazzmaster Open Heart Automatic suits an enthusiast who enjoys mechanical details as part of the design. The open dial gives the watch its identity, and the 80-hour reserve adds real value for everyday wear. Hamilton kept the watch easy to read, useful through the week, and interesting long after the first look.