Side by side

Spinnaker Fleuss 40 AutomaticvsSeiko Prospex Sea

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

Fleuss 40 Automatic
SpinnakerFleuss 40 Automatic
MSRP $450
Prospex Sea
SeikoProspex Sea
MSRP $795

At a glance

12 of 29 specs differ
Diameter
Fleuss 40 Automatic40mm
Prospex Sea34mm
Power Reserve
Fleuss 40 Automatic40h
Prospex Sea40h
Water Resistance
Fleuss 40 Automatic150m
Prospex Sea200m
MSRP
Fleuss 40 Automatic$450
Prospex Sea$795

Full specifications

Case

6 specs
Diameter
40mm
34mm
Thickness
11mm
8.7mm
Lug-to-Lug
47mm
40.8mm
Lug Width
20mm
16mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
150m
200m

Crystal & Dial

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

Movement

2 specs
Caliber
SII NH35A
6N01
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$450
$795

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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 Fleuss 40 Automatic

Owners find the Spinnaker Fleuss 40 Automatic a good size for smaller wrists, though one owner notes the lume is too diffuse for easy nighttime reading. The pilot-style crown is an unusual feature for a dive watch. Overall, owners value the Spinnaker Fleuss 40 Automatic for its wearability on smaller wrists.

From video reviewers

The coral red dial is a unique aesthetic. The watch is a strong contender for best-in-class under $300.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many appreciating its comfortable wearability due to its case shape and lug-to-lug distance. Reviewers consistently highlight its impressive finishing and classic dive watch design, often noting the bright LumiBrite lume. Some owners find the watch to be large, thick, and heavy, while others consider it the perfect size, indicating a split opinion on wearability for smaller wrists. The power reserve from some movements is noted as less than newer variants, and the clasp quality receives mixed feedback. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional finishing and value proposition in the dive watch market.

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