Side by side

Tornek-Rayville CISO M38 FieldvsSpinnaker Dumas GMT

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

CISO M38 Field
Tornek-RayvilleCISO M38 Field
MSRP $695
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

13 of 29 specs differ
Diameter
CISO M38 Field38mm
Dumas GMT44mm
Power Reserve
CISO M38 Field42h
Dumas GMT40h
Water Resistance
CISO M38 Field100m
Dumas GMT300m
MSRP
CISO M38 Field$695
Dumas GMT$399

Full specifications

Case

7 specs
Category
GMT
Diameter
38mm
44mm
Thickness
12.45mm
15mm
Lug-to-Lug
43.6mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

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

Movement

2 specs
Caliber
TMI NH36
Seiko NH34A
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$695
$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.

Tornek-Rayville CISO M38 Field

Owners widely report the Tornek-Rayville CISO M38 Field offers high overall quality with a comfortable bracelet featuring single-sided screw links. The watch exhibits minimal wear, with only hairline scratches and a faint, difficult-to-photograph bezel mark. On balance, owners value the Tornek-Rayville CISO M38 Field for its robust build and comfortable wearability.

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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