A chronograph sits in a useful middle ground -- more presence than a plain three-hand watch, but not so sport-heavy that it only works with a dive suit or a gym bag. Here's how the SBTR017 and SBTR019 actually wear in practice.
With the brown strap and green dial (SBTR017)
This is the warmer, more classic combination, and it leans into anything with earth tones -- olive, tan, rust, denim. It reads vintage-adjacent without trying too hard, which makes it an easy match for a field jacket, a knit sweater, or a simple oxford shirt with the sleeves rolled up.

With the blue strap and blue dial (SBTR019)
Blue dials read cooler and slightly more modern. This one pairs naturally with greys, navy, white, and most cool-toned neutrals -- it's the version that looks equally at home under a suit cuff or with a plain white t-shirt and jeans.
A few general rules that hold for either
- Match metal tones where you can -- the gold-toned markers on the SBTR017 pair well with warmer accessories, while the SBTR019's cooler palette suits silver-toned jewelry or hardware
- Leather straps dress a watch up faster than a bracelet or rubber strap would -- lean into that for smart-casual occasions rather than treating it as strictly a weekend watch
- A chronograph with visible subdials reads a little busier on a slim wrist -- if that's a concern, roll a cuff or sleeve slightly to give the dial some visual room

The honest takeaway
Neither of these is a niche dress watch or a purely tool-oriented sport watch -- they sit in between, which is exactly why they work with more of an actual wardrobe than either extreme would.