Which is cheaper, the Fears Brunswick 40.5 Jump Hour or the Seiko Prospex Sea?

At MSRP the Seiko Prospex Sea is the cheaper of the two at $900, against $4,498 for the Fears Brunswick 40.5 Jump Hour — a $3,598 gap before any retailer discounting.

Which is bigger, the Fears Brunswick 40.5 Jump Hour or the Seiko Prospex Sea?

The Seiko Prospex Sea wears larger at 41mm versus 40.5mm for the Fears Brunswick 40.5 Jump Hour — a 0.5mm difference across the dial.

Which has better water resistance, the Fears Brunswick 40.5 Jump Hour or the Seiko Prospex Sea?

The Seiko Prospex Sea is rated to 200m versus 10m for the Fears Brunswick 40.5 Jump Hour.

Which has a longer power reserve, the Fears Brunswick 40.5 Jump Hour or the Seiko Prospex Sea?

The Seiko Prospex Sea carries a 70-hour power reserve against 40 hours on the Fears Brunswick 40.5 Jump Hour.

What movement does the Fears Brunswick 40.5 Jump Hour run compared to the Seiko Prospex Sea?

Both watches run automatic movements — the Fears Brunswick 40.5 Jump Hour uses the Sellita SW200 and the Seiko Prospex Sea uses the 6R35.

Side by side

Fears Brunswick 40.5 Jump HourvsSeiko Prospex Sea

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

Fears Brunswick 40.5 Jump Hour

brunswick-40-5-jump-hour-china-blue

MSRP $4,498

Seiko Prospex Sea

spb317j1

MSRP $900

At a glance

15 of 29 specs differ

Diameter

Brunswick 40.5 Jump Hour40.5mm

Prospex Sea41mm

Power Reserve

Brunswick 40.5 Jump Hour40h

Prospex Sea70h

Water Resistance

Brunswick 40.5 Jump Hour10m

Prospex Sea200m

MSRP

Brunswick 40.5 Jump Hour$4,498

Prospex Sea$900

Full specifications

Case

6 specs

Crystal & Dial

5 specs

Crystal

Domed Sapphire

Sapphire

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Blue

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Sellita SW200

6R35

Power Reserve

40h

70h

Jewels

Pricing

1 specs

MSRP

$4,498

$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 40.5 Jump Hour

Owners widely praise the Fears Brunswick 40.5 Jump Hour's stunning aventurine dial and vintage-modern aesthetic, with some noting excellent finishing. Reviewers highlight its fun dial visuals and unique in-house jump hour module. Owners are split on legibility with the jump hour complication, and some find the 12.8mm thickness substantial for some wrists. On balance, owners and reviewers rate the Fears Brunswick 40.5 Jump Hour highly for its unique dial and jump hour complication, despite some concerns about thickness and legibility.

Hodinkee

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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