Fortis Marinemaster M-40vsSpinnaker Fleuss
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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.

Marinemaster M-40

Fleuss
Diameter
40mm
43mm
Lug-to-Lug
n/a
51mm
Thickness
13mm
13mm
Water Resistance
300m
highest
150m
Power Reserve
38h
n/a
MSRP
$3,520
$209
lowest
Movement
Sellita SW220-1
Seiko NH35
Case
5 specsCrystal & Dial
1 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Fortis Marinemaster M-40 for its gorgeous appearance and strong wrist presence, noting its impressive lume. The watch comes with a bracelet and three rubber straps, including a deployant buckle. On balance, owners rate the Fortis Marinemaster M-40 highly for its aesthetic appeal and comprehensive strap package.
The watch's Swiss Made construction and robust design are consistently praised. Reviewers noted the bracelet as a potential point of contention.
The Spinnaker Fleuss is praised for its retro design, textured dial, and good value, especially with discounts, offering a Blancpain Fifty-Five homage. Owners report superb build quality and finish for the price, with one noting it looks better in person than in website photos. The dial is well lumed, and the watch keeps good time with a decent power reserve. However, some find the 43mm case on the larger side, and one owner found the included leather strap too thick. Concerns have been raised about the acrylic bezel's durability and the watch's origin in Hong Kong. Overall, owners and reviewers rate the Spinnaker Fleuss highly for its attractive design and strong build quality at its price point.
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