Side by side

Spinnaker Fleuss 40 AutomaticvsSeiko Prospex SPEEDTIMER

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 SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $750
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 SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER's design, with specific mentions of its beautiful ice blue sundial and compact 39mm case size, which some note wears smaller than its specifications due to a short lug-to-lug distance. Reviewers highlight its racing-inspired aesthetic and versatility, with one owner finding the 39mm solar model a sturdy and reliable everyday watch with 100m water resistance. However, some owners question the value proposition, citing the $700 price for a solar quartz model and a thickness of 13mm, while others expressed a preference for automatic movements. On balance, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER's attractive vintage-inspired design and compact wearability, though some debate its value and thickness for a solar quartz chronograph.

At a glance

14 of 29 specs differ
Diameter
Fleuss 40 Automatic40mm
Prospex SPEEDTIMER41.4mm
Power Reserve
Fleuss 40 Automatic40h
Prospex SPEEDTIMER40h
Water Resistance
Fleuss 40 Automatic150m
Prospex SPEEDTIMER100m
MSRP
Fleuss 40 Automatic$450
Prospex SPEEDTIMER$750

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
40mm
41.4mm
Thickness
11mm
13mm
Lug-to-Lug
47mm
45.9mm
Lug Width
20mm
21mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
150m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
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
NH35
V192
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$450
$750
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