Fortis Marinemaster M-40vsLorier Hydra SIII
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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

Hydra SIII
Diameter
40mm
39mm
Thickness
13mm
n/a
Water Resistance
300m
highest
200m
Power Reserve
38h
n/a
MSRP
$3,520
$699
lowest
Movement
Sellita SW220-1
Automatic
Case
4 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.
Owners praise the Lorier Hydra SIII as an excellent daily and travel watch, appreciating its vintage-inspired aesthetics and GADA capabilities. Reviewers note its smooth bezel action and well-executed crown, with one owner finding the winding action buttery. Accuracy figures from owners and reviewers range from +7 to +8.5 seconds per day. The domed Hesalite crystal's distortion may not appeal to all, and some find the finishing a tad rough around the edges, though it is considered good for the price. On balance, owners and reviewers rate the Lorier Hydra SIII highly for its value and travel-ready feature set.
The watch is praised for its vintage-inspired design and competitive pricing. Reviewers noted the attractive dial and hands. No shared weakness was identified.
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