Hamilton Jazzmaster Slim AutovsEcho/Neutra Rivanera

The Hamilton Jazzmaster Slim Auto is praised for its elegance, light weight, and impressive leather strap, offering a classy yet engaging aesthetic. Its thin 8mm profile, achieved partly by omitting a seconds hand and utilizing the ETA 2892 movement, contributes to its wearability. However, one owner notes the 44mm case size as being very large, and another finds it less appealing than vintage Hamilton models, though the black dial version is considered better looking. Overall, owners appreciate the Hamilton Jazzmaster Slim Auto for its slim profile and elegant design.

The Echo/Neutra Rivanera is widely praised for its remarkably thin 5.9mm Grade 5 titanium case, which contributes to its exceptional lightness and wearability, striking a balance between dress and everyday style. Reviewers and owners highlight its Art Deco-inspired design and the respected ETA 7001 manual-wind movement for its slimness and longevity. Impressive packaging and accessories are also noted as significant value adds for its price point. Some reviewers point out the lack of quick-release straps and the bead-blasted finish, with one owner expressing concern over the case's scratch resistance. The non-hacking movement is also a point of note for some enthusiasts. Overall, owners and reviewers highly regard the Echo/Neutra Rivanera for its exceptionally thin and lightweight titanium case and unique Art Deco aesthetic at an affordable price.