Side by side

HELM MiyakovsSpinnaker Dumas GMT

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

Miyako
HELMMiyako
MSRP $375
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

14 of 29 specs differ
Diameter
Miyako40mm
Dumas GMT44mm
Power Reserve
Miyako42h
Dumas GMT40h
Water Resistance
Miyako200m
Dumas GMT300m
MSRP
Miyako$375
Dumas GMT$399

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
40mm
44mm
Thickness
13.75mm
15mm
Lug-to-Lug
47mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

4 specs
Crystal Shape
Double-Domed
Flat
AR Coating
Yes
Inner
Dial Color
Gray
Blue
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Seiko NH34A
Power Reserve
42h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$375
$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.

HELM Miyako

HELM Miyako owners widely praise its exceptional value and quality, with multiple reports highlighting its stunning appearance and dial details. The watch is noted for its excellent accuracy, with figures around +1.5 to +2 seconds per day. One owner found the HELM Miyako to be tough and versatile, fitting well on a 6.6-inch wrist. Overall, owners consider the HELM Miyako an amazing value and a great watch, worth the wait for its availability.

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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