Side by side

Spinnaker Dumas GMTvsLongines MASTER COLLECTION

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
MASTER COLLECTION
LonginesMASTER COLLECTION
MSRP $2,850

At a glance

22 of 29 specs differ
Diameter
Dumas GMT44mm
MASTER COLLECTION40mm
Power Reserve
Dumas GMT40h
MASTER COLLECTION72h
Water Resistance
Dumas GMT300m
MASTER COLLECTION30m
MSRP
Dumas GMT$399
MASTER COLLECTION$2,850

Full specifications

Case

9 specs
Category
GMT
Diameter
44mm
40mm
Thickness
15mm
10.8mm
Lug-to-Lug
48mm
46.8mm
Lug Width
22mm
21mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Silver
Indices
Applied
Painted Arabic numerals
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
Seiko NH34A
L897.2
Beat Rate
28,800 vph
25,200 vph
Power Reserve
40h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds, month and date by annual calendar

Pricing

1 specs
MSRP
$399
$2,850

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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.

Longines MASTER COLLECTION

Owners widely praise the Longines Master Collection for its excellent fit and finish, attractive dial aesthetics with engraved numerals and textures, and overall value, particularly for complications like chronographs and moonphases at its price point. Reviewers note the refined design and product quality, with some finding the case appears less thick than its stated height. Owners report a buttery winding feel and appreciate the 72-hour power reserve. However, some owners find the case finishing homogenous and the traditional styling overshadowed by modern trends. Specific models draw criticism for subdial placement cutting off numerals, a lack of bracelet micro-adjustments, uninspiring crown and pushers, and 30m water resistance being on the light side. One owner reported a broken moon phase setting mechanism, while another felt the dial and chapter ring looked cheap.

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