Side by side

Spinnaker Dumas AutomaticvsWolbrook Douglas Grand Prix Racing

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

Dumas Automatic
SpinnakerDumas Automatic
MSRP $239
Douglas Grand Prix Racing
WolbrookDouglas Grand Prix Racing
MSRP $442

At a glance

9 of 29 specs differ
Diameter
Dumas Automatic44mm
Douglas Grand Prix Racing40mm
Power Reserve
Dumas Automatic40h
Douglas Grand Prix Racing40h
Water Resistance
Dumas Automatic300m
Douglas Grand Prix Racing100m
MSRP
Dumas Automatic$239
Douglas Grand Prix Racing$442

Full specifications

Case

6 specs
Category
Diver
Racing
Diameter
44mm
40mm
Thickness
15mm
13mm
Lug-to-Lug
48mm
Lug Width
22mm
20mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Blue
Steel

Movement

1 specs
Caliber
SII NH35A
Miyota 8315

Pricing

1 specs
MSRP
$239
$442

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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 Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

Wolbrook Douglas Grand Prix Racing

The Wolbrook Douglas Grand Prix Racing features a Hesalite box crystal, a roulette date wheel, and a 40mm steel case. Owners note it is powered by a Miyota 8315 movement with a 60-hour power reserve, regulated to within ±15 seconds per day. One owner points out that an earlier iteration of the movement did not hack and had a 42-hour power reserve. On balance, owners appreciate the Hesalite crystal and roulette date wheel at its $275 price point.

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