Side by side

Fears Brunswick 40 (Black)vsSeiko Prospex Sea

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

Brunswick 40 (Black)
FearsBrunswick 40 (Black)
MSRP $3,545
Prospex Sea
SeikoProspex Sea
MSRP $900

At a glance

14 of 29 specs differ
Diameter
Brunswick 40 (Black)40mm
Prospex Sea41mm
Power Reserve
Brunswick 40 (Black)40h
Prospex Sea70h
Water Resistance
Brunswick 40 (Black)15m
Prospex Sea200m
MSRP
Brunswick 40 (Black)$3,545
Prospex Sea$900

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
40mm
41mm
Thickness
11.9mm
12.3mm
Lug-to-Lug
46.5mm
46.9mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
15m
200m

Crystal & Dial

4 specs
Crystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
La Joux-Perret G100
6R35
Power Reserve
40h
70h
Jewels
25
24

Pricing

1 specs
MSRP
$3,545
$900

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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.

Fears Brunswick 40 (Black)

The Fears Brunswick 40 (Black) is praised for its shirt-cuff-sleek 11.06mm thin case and a bespoke five-link bracelet with a butterfly clasp, noted for its wrist-hugging comfort and muscular appearance on the cushion case. Its brushed finish effectively hides hairlines. The ETA 2824-2 automatic movement powers the watch. On balance, owners and reviewers rate the Fears Brunswick 40 (Black) highly for its British, bespoke take on the classic sports watch design and comfortable wearability.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent lume, robust build, and value, with many highlighting the comfortable 4 o'clock crown and reliable movements. Reviewers note impressive case finishing and attractive dials, with specific models lauded for their gradient blue designs and smooth bezel actions. Accuracy figures vary, with one owner reporting +9 seconds/day after demagnetization, while others find the watches to be good first "proper" watches. Some owners find the stock rubber straps uncomfortable or the overall size substantial on smaller wrists. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its combination of strong dive watch functionality and appealing design at its price point.

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