Side by side

Spinnaker Cahill AutomaticvsSpinnaker Dumas GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Cahill Automatic
SpinnakerCahill Automatic
MSRP $350
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

8 of 29 specs differ
Diameter
Cahill Automatic42mm
Dumas GMT44mm
Power Reserve
Cahill Automatic40h
Dumas GMT40h
Water Resistance
Cahill Automatic200m
Dumas GMT300m
MSRP
Cahill Automatic$350
Dumas GMT$399

Full specifications

Case

5 specs
Category
Diver
GMT
Diameter
42mm
44mm
Thickness
13.7mm
15mm
Lug-to-Lug
51mm
48mm
Water Resistance
200m
300m

Crystal & Dial

1 specs
Dial Color
Green
Blue

Movement

1 specs
Caliber
SII NH35A
Seiko NH34A

Pricing

1 specs
MSRP
$350
$399

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Spinnaker Cahill Automatic

Owners widely praise the Spinnaker Cahill Automatic for its attractive vintage-inspired design, comfortable wearability on smaller wrists, and good timekeeping, with one owner specifically noting the large "maxi" indices and NATO strap as highlights. However, some find the lume application uneven and note the use of a mineral crystal. A significant concern raised by one owner is a report of internal component failures and a perceived lack of quality control within the brand. On balance, the Spinnaker Cahill Automatic is well-regarded by owners for its style and value, particularly at specific price points, despite some noted manufacturing inconsistencies.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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