Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316vsSpinnaker Dumas GMT
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.
Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
Dumas GMT
Diameter
40mm
44mm
Lug-to-Lug
48mm
48mm
Thickness
14mm
lowest
15mm
Water Resistance
200m
300m
highest
MSRP
$379
lowest
$399
Movement
Seiko NH34
Seiko NH34
Case
6 specsCrystal & Dial
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 owners widely report excellent value at its $329 MSRP, citing the Seiko NH34 automatic movement, sapphire crystal, and well-proportioned 40mm case. The watch features a handsome anthracite dial with applied indices and a quality 120-click unidirectional bezel. On balance, owners rate the Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 highly for its value and robust feature set at the price point.
The Spinnaker Dumas GMT is praised for its good finishing and satisfying lume, including on the crown. Owners note its 44mm case and 15mm thickness, with one finding it wears well on a 17cm wrist, while a reviewer suggests its substantial size and 209g weight make it unsuitable for smaller wrists. Overall, owners and reviewers find the Spinnaker Dumas GMT offers good value, particularly with the inclusion of an extra rubber strap.
The Spinnaker Dumas GMT offers robust build quality for its price point. Reviewers noted the 300-meter water resistance.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.