Side by side

Fortis Marinemaster M-44vsLongines ULTRA‑CHRON CARBON

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
ULTRA‑CHRON CARBON
LonginesULTRA‑CHRON CARBON
MSRP $5,550

At a glance

18 of 29 specs differ
Diameter
Marinemaster M-4444mm
ULTRA‑CHRON CARBON43mm
Power Reserve
Marinemaster M-4438h
ULTRA‑CHRON CARBON52h
Water Resistance
Marinemaster M-44300m
ULTRA‑CHRON CARBON300m
MSRP
Marinemaster M-44$5,120
ULTRA‑CHRON CARBON$5,550

Full specifications

Case

5 specs
Diameter
44mm
43mm
Lug-to-Lug
48.9mm
Material
Stainless Steel
Titanium
Finish
Brushed and polished
Caseback
Solid
Screw-down case back

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
Orange
Silver
Indices
Applied
Applied indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
Sellita SW220-1
L836.6
Beat Rate
28,800 vph
36,000 vph
Power Reserve
38h
52h
Jewels
26
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds

Pricing

1 specs
MSRP
$5,120
$5,550

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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.

Longines ULTRA‑CHRON CARBON

The Longines ULTRA‑CHRON CARBON is praised for its lightweight composite case and unique "Batman" aesthetic, with its 5Hz movement widely noted for exceptional accuracy. Owners widely report the high-beat movement is the cheapest 5Hz option available. Some owners find the non-rotating bezel a relief, while others consider it a deal-breaker, noting the watch is no longer a dive watch. On balance, owners and reviewers highly rate the Longines ULTRA‑CHRON CARBON for its cool, lightweight design and the exceptional accuracy of its 5Hz movement.

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