Side by side

Fortis Marinemaster M-40vsLongines LONGINES SPIRIT ZULU TIME

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

Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520
LONGINES SPIRIT ZULU TIME
LonginesLONGINES SPIRIT ZULU TIME
MSRP $5,200

At a glance

10 of 29 specs differ
Diameter
Marinemaster M-4040mm
LONGINES SPIRIT ZULU TIME39mm
Power Reserve
Marinemaster M-4038h
LONGINES SPIRIT ZULU TIME40h
Water Resistance
Marinemaster M-40300m
LONGINES SPIRIT ZULU TIME100m
MSRP
Marinemaster M-40$3,520
LONGINES SPIRIT ZULU TIME$5,200

Full specifications

Case

5 specs
Category
Diver
GMT
Diameter
40mm
39mm
Thickness
13mm
13.5mm
Lug-to-Lug
46.8mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Orange
Anthracite

Movement

3 specs
Caliber
Sellita SW220-1
L844.4
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$5,200

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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-40

Owners praise the Fortis Amber Orange for its gorgeous appearance and strong wrist presence, noting its crazy lume and 70-hour power reserve. The Doxa SUB 300T, described as having a superb, eccentric design with a highly legible dial and functional no-decompression bezel, uses an ETA 2824-2 movement. However, the SUB 300T's 42.5mm case wears large and its 14mm thickness is not ideal for dress shirts, though it boasts 1,200m water resistance. On balance, owners appreciate the Fortis Amber Orange for its striking aesthetics and impressive lume.

LONGINES SPIRIT ZULU TIME

Owners widely praise the Longines Spirit Zulu Time for its superb finishing, smooth crown action, and mesmerizing ceramic bezel, with many noting its premium pilot/sporty design and unique dial details. The movement is consistently lauded for its extreme accuracy, running at 0 to +1 second per day, and the watch is considered to offer remarkable value that punches above its price point. However, the bracelet is criticized by multiple sources for its push-pin adjustment and limited micro-adjustment holes, and the 42mm case size with a 49.3mm lug-to-lug is noted as potentially large for smaller wrists, though some users express a preference for the 39mm size. One owner reported their movement failed within the first year and found setting the date a "nightmare," while another owner notes minor criticisms like the date window being slightly off-center. On balance, owners and reviewers rate the Longines Spirit Zulu Time highly for its impressive finishing and accuracy at its price point.

From video reviewers

The 39mm case size is a significant strength, addressing previous concerns about thickness. The value proposition within the GMT market is also a shared positive point. No consensus on weaknesses was reached.

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