Side by side

Fortis Marinemaster M-44vsSeiko Prospex LX line

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

Marinemaster M-44
FortisMarinemaster M-44
MSRP $5,120
Prospex LX line
SeikoProspex LX line
MSRP $5,500

At a glance

14 of 29 specs differ
Diameter
Marinemaster M-4444mm
Prospex LX line44.8mm
Power Reserve
Marinemaster M-4438h
Prospex LX line72h
Water Resistance
Marinemaster M-44300m
Prospex LX line200m
MSRP
Marinemaster M-44$5,120
Prospex LX line$5,500

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
44mm
44.8mm
Thickness
14mm
14.7mm
Lug-to-Lug
50.9mm
Material
Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Super-clear coating
Dial Color
Orange
Black
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Sellita SW220-1
5R66
Type
Automatic
Spring Drive
Power Reserve
38h
72h
Jewels
26
30

Pricing

1 specs
MSRP
$5,120
$5,500

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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.

Fortis Marinemaster M-44

The Fortis Marinemaster M-44 is praised for its excellent build quality and wearability, featuring a highly legible dial and a COSC-certified Kenissi-based movement that ran at 0 seconds per day. Owners appreciate its 70-hour power reserve and the inclusion of multiple straps and a deployant buckle, noting its gorgeous appearance and great wrist presence. A minor point raised is the 21mm lug width, with a wish for it to be 22mm. The Fortis Marinemaster M-44 is priced at $4,150. Overall, owners and reviewers rate the Fortis Marinemaster M-44 highly for its robust specifications and comfortable wearability at its price point.

Seiko Prospex LX line

Owners widely report the dial's blue-green sunburst is phenomenal, and the sapphire glass features blue AR coating. Some owners feel the high price limits discounts and sales, with one AD noting extremely low sales due to the cost. One owner reported DLC peeling off a two-week-old watch, and another noted quality control issues like bezel inserts and fallen second hands. On balance, owners consider the Seiko Prospex LX line a nicely built watch, though pricing led to poor sales and its discontinuation.

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