Spinnaker Fleuss 40 AutomaticvsVenezianico Nereide 39 - 3121501C
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Fleuss 40 Automatic

Nereide 39 - 3121501C
Diameter
40mm
39mm
Lug-to-Lug
47mm
45.5mm
lowest
Thickness
11mm
n/a
Water Resistance
150m
200m
highest
MSRP
$450
lowest
$654
Movement
Seiko NH35
Seiko NH35
Case
6 specsCrystal & Dial
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Spinnaker Fleuss 40 Automatic is noted as a good size for smaller wrists, with one owner finding it comfortable on a 6.25-inch wrist. However, the lume is considered too diffuse for easy nighttime reading of the hands. The pilot-style crown is an unusual design choice for a dive watch. Overall, owners and reviewers find the Spinnaker Fleuss 40 Automatic to be a well-sized and comfortable watch with a unique crown design.
The Venezianico Nereide 39 - 3121501C is widely praised for its stunning sunburst blue, mother-of-pearl, or Aventurine dials and its mirror-finish tungsten bezel. Owners consistently highlight the 39mm case's thinness and excellent finishing, along with the quality of the bracelet and sapphire crystal. Some reviewers note the bezel action is stiff or that the bezel requires frequent cleaning. The lume is described as lacking, particularly on the second hand or bezel. Accuracy figures vary, with one owner reporting +30 seconds per day while others do not specify. The bracelet's lack of micro-adjustment is a recurring point of contention, making sizing difficult for some. Overall, owners and reviewers rate the Venezianico Nereide 39 - 3121501C highly for its exceptional dial and bezel aesthetics and wearability at its price point.
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