Side by side

Spinnaker Dumas GMTvsTornek-Rayville TR-660 Acrylic Non-date

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
TR-660 Acrylic Non-date
Tornek-RayvilleTR-660 Acrylic Non-date

At a glance

13 of 29 specs differ
Diameter
Dumas GMT44mm
TR-660 Acrylic Non-date40mm
Power Reserve
Dumas GMT40h
TR-660 Acrylic Non-date50h
Water Resistance
Dumas GMT300m
TR-660 Acrylic Non-date200m
MSRP
Dumas GMT$399
TR-660 Acrylic Non-date

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
44mm
40mm
Thickness
15mm
14.7mm
Lug-to-Lug
48mm
48.5mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Blue
Black
Lume
None
Superluminova

Movement

2 specs
Caliber
Seiko NH34A
TMI NH38
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$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 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.

Tornek-Rayville TR-660 Acrylic Non-date

The Tornek-Rayville TR-660 Acrylic Non-date is a 40mm bead-blasted stainless steel watch with a utilitarian matte black dial and a moisture detector, measuring 14.7mm thick and 48.5mm lug-to-lug, featuring a subtly domed, AR-coated crystal. One owner notes a preference for a different watch's bezel-locking mechanism but appreciates the TR-660's 20mm lug size. Another owner reports damage to the case and bezel, though it includes unused and worn straps. On balance, owners find the Tornek-Rayville TR-660 Acrylic Non-date to have a timeless design that remains appealing.

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