Side by side

Spinnaker Dumas GMTvsTissot Seastar 1000

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
Seastar 1000
TissotSeastar 1000
MSRP $875

At a glance

13 of 29 specs differ
Diameter
Dumas GMT44mm
Seastar 100040mm
Power Reserve
Dumas GMT40h
Seastar 100080h
Water Resistance
Dumas GMT300m
Seastar 1000300m
MSRP
Dumas GMT$399
Seastar 1000$875

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
44mm
40mm
Thickness
15mm
12.48mm
Lug-to-Lug
48mm
40mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

4 specs
AR Coating
Inner
Yes
Dial Color
Blue
Graded grey-black
Indices
Applied
Indexes
Lume
None
Super-LumiNova ®

Movement

2 specs
Caliber
Seiko NH34A
Powermatic 80
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$399
$875

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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 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.

Tissot Seastar 1000

Owners widely praise the Tissot Seastar 1000 for its value, solid build, and 300m water resistance, with reviewers highlighting its comfortable wearability and affordable price point for a sporty diver. Some owners find the bezel difficult to use and note glare from the crystal, while others criticize the lume and bracelet quality, with one owner describing the clasp as flimsy. Accuracy figures for the quartz models are excellent, and the Powermatic 80 movement is considered reliable. Overall, owners and reviewers rate the Tissot Seastar 1000 highly for its strong value proposition as a sporty, affordable everyday watch.

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