Side by side

Spinnaker Dumas GMTvsTissot PR 100

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
PR 100
TissotPR 100
MSRP $450

At a glance

13 of 29 specs differ
Diameter
Dumas GMT44mm
PR 10036mm
Power Reserve
Dumas GMT40h
PR 10040h
Water Resistance
Dumas GMT300m
PR 100100m
MSRP
Dumas GMT$399
PR 100$450

Full specifications

Case

7 specs
Category
GMT
Chronograph
Diameter
44mm
36mm
Thickness
15mm
11.05mm
Lug-to-Lug
48mm
36mm
Lug Width
22mm
18mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

3 specs
Dial Color
Blue
White mother-of-pearl
Indices
Applied
Index
Lume
None
Super-LumiNova ®

Movement

2 specs
Caliber
Seiko NH34A
10 1/2 '''
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$399
$450

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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 PR 100

Owners widely praise the Tissot PR 100 for its excellent value, with specific mentions of its sapphire crystal, 100m water resistance, and the 80-hour power reserve of its Powermatic 80 movement. Reviewers and owners consistently highlight its pleasing winding action and strong lume. Accuracy figures for the Powermatic 80 COSC variants are reported as -2 seconds per day or +/- 1-2 seconds per day. Some owners note that the crystal attracts fingerprints and that the black finish on some bracelets can wear off after extended daily use. A single owner of a quartz model experienced a recurring issue where the watch stopped for periods weekly, which was not resolved by a battery replacement. Overall, owners and reviewers rate the Tissot PR 100 highly for its exceptional value and robust features, particularly its durable construction and reliable movements.

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