Aquastar Deepstar ChronographvsKnot Watches ATC-40

Owners widely praise the Aquastar Deepstar Chronograph for its excellent finishing, historical appeal as a faithful 1960s tool watch recreation, and its smooth column wheel chronograph action, with some noting it surpasses competitors. Reviewers and owners alike highlight the 39mm case size as a significant improvement in wearability, though its 14.8mm to 17mm thickness is noted as substantial. The watch features a sapphire crystal with triple AR coating for excellent legibility and 200m water resistance. Some owners express a preference for a bracelet option over the included tropic and leather straps, and one reviewer found the 21mm lug width awkward. Overall, owners and reviewers rate the Aquastar Deepstar Chronograph highly for its authentic vintage tool watch character and impressive build quality at its price point.

Knot Watches ATC-40 owners widely praise its case finishing, with one noting Sallaz polishing that distinguishes it from competitors, and appreciate the value and craftsmanship at its price point. The watch is described as well-made with a discrete dial featuring subtle gold and silver powder, and a modern look complemented by a deep burgundy textured dial and refined mesh bracelet. While some find it wears smaller than its 40mm case size, one owner dislikes the 18mm lug width, and another notes the premium strap is stiff but well-made with a nice deployment buckle. A reviewer also points out the very small crown appears undersized and poorly placed near the bottom of the case. Overall, owners rate the Knot Watches ATC-40 highly for its craftsmanship and value, with its distinctive case finishing being a significant draw.