Side by side

Seiko Prospex SeavsWolbrook Douglas Grand Prix Racing

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

Prospex Sea
SeikoProspex Sea
MSRP $625
Douglas Grand Prix Racing
WolbrookDouglas Grand Prix Racing
MSRP $442
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

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.

At a glance

14 of 29 specs differ
Diameter
Prospex Sea43.8mm
Douglas Grand Prix Racing40mm
Power Reserve
Prospex Sea41h
Douglas Grand Prix Racing40h
Water Resistance
Prospex Sea200m
Douglas Grand Prix Racing100m
MSRP
Prospex Sea$625
Douglas Grand Prix Racing$442

Full specifications

Case

7 specs
Category
Diver
Racing
Diameter
43.8mm
40mm
Thickness
12.8mm
13mm
Lug-to-Lug
48.7mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Steel
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
4R35
Miyota 8315
Power Reserve
41h
40h
Jewels
23
25

Pricing

1 specs
MSRP
$625
$442
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