In general，the watch outer skin is round or square.However,we look at this Hamilton watch,it features a round triangle，it’s pretty cool.

The Hamilton Ventura Elvis 80 made of material and color combinations and it is possible to choose between automatic and quartz movement.
The signature triangular shape of the fully integrated case  is underlined by smooth brushed and polished surfaces. Its design was refreshed with more flowing contours, a steeply sloped anti-reflective crystal and a curved dial.
The automatic version is recognizable for its PVD-treated steel case that can be matched to a sporty rubber or a leather strap with stitching.

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