Side by side

Spinnaker Dumas GMTvsStraton Straton Syncro Sports day/date Automatic

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
Straton Syncro Sports day/date Automatic
StratonStraton Syncro Sports day/date Automatic
MSRP $499

At a glance

17 of 29 specs differ
Diameter
Dumas GMT44mm
Straton Syncro Sports day/date Automatic40mm
Power Reserve
Dumas GMT40h
Straton Syncro Sports day/date Automatic
Water Resistance
Dumas GMT300m
Straton Syncro Sports day/date Automatic200m
MSRP
Dumas GMT$399
Straton Syncro Sports day/date Automatic$499

Full specifications

Case

8 specs
Category
GMT
Chronograph
Diameter
44mm
40mm
Thickness
15mm
13mm
Lug-to-Lug
48mm
49mm
Lug Width
22mm
20mm
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Yes
Dial Color
Blue
Indices
Applied

Movement

4 specs
Caliber
Seiko NH34A
NH36
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$399
$499

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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.

Straton Syncro Sports day/date Automatic

Owners widely praise the Straton Syncro's exceptional finishing, retro design, and well-balanced dial, with one owner calling it Straton's best work. The fully-lumed dial is a significant draw for legibility, though one forum user notes the white dial's lume can cast a cool tone. Criticisms include a busy bezel design with difficult-to-read markings, applied numerals that reduce legibility, and a polished Milanese bracelet that contrasts with the brushed case. The NH36 movement is considered reliable but not highly accurate, and the 40mm case wears larger than its dimensions. The watch is approximately 15mm thick, which may present wearability issues with long sleeves. On balance, owners and reviewers highlight the Straton Syncro's impressive finishing and distinctive retro design as its strongest attributes.

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