Side by side

Spinnaker Bradner GMTvsLongines PrimaLuna

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
PrimaLuna
LonginesPrimaLuna
MSRP $2,950

At a glance

22 of 29 specs differ
Diameter
Bradner GMT42mm
PrimaLuna34mm
Power Reserve
Bradner GMT40h
PrimaLuna72h
Water Resistance
Bradner GMT180m
PrimaLuna30m
MSRP
Bradner GMT$299
PrimaLuna$2,950

Full specifications

Case

9 specs
Category
GMT
Dress
Diameter
42mm
34mm
Thickness
15mm
11.6mm
Lug-to-Lug
50mm
41mm
Lug Width
22mm
8mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
180m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
Brown
Blue
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
Seiko NH34A
L899.5
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 and date, Moon phase display at 6 o'clock

Pricing

1 specs
MSRP
$299
$2,950

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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 Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

Longines PrimaLuna

Owners widely praise the Longines PrimaLuna for its stylish, understated design and comfortable 26.5mm and 34mm case sizes, with some preferring the quartz for its lower maintenance and others the automatic for its craftsmanship. The automatic movement, an L899.5 or Caliber L899, offers a 72-hour power reserve and exhibits consistent accuracy averaging a loss of 1.3 seconds per day in testing, though it runs 3-4 seconds slower on the wrist. The redesigned collection features a curvier case with contemporary lug integration and is available in steel or bi-metal. On balance, owners and reviewers appreciate the Longines PrimaLuna for its elegant styling and reliable automatic movement, though some find its brand prestige and design less compelling compared to certain luxury alternatives.

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