Side by side

Fortis Flieger F-43 BicompaxvsLongines LONGINES SPIRIT ZULU TIME

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

Flieger F-43 Bicompax
FortisFlieger F-43 Bicompax
MSRP $4,180
LONGINES SPIRIT ZULU TIME
LonginesLONGINES SPIRIT ZULU TIME
MSRP $5,200

At a glance

11 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
LONGINES SPIRIT ZULU TIME39mm
Power Reserve
Flieger F-43 Bicompax58h
LONGINES SPIRIT ZULU TIME40h
Water Resistance
Flieger F-43 Bicompax200m
LONGINES SPIRIT ZULU TIME100m
MSRP
Flieger F-43 Bicompax$4,180
LONGINES SPIRIT ZULU TIME$5,200

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
43mm
39mm
Thickness
14.5mm
13.5mm
Lug-to-Lug
46.8mm
Lug Width
22mm
21mm
Water Resistance
200m
100m

Crystal & Dial

1 specs
Dial Color
Original
Anthracite

Movement

3 specs
Caliber
Sellita SW510 BH a
L844.4
Power Reserve
58h
40h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$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 Flieger F-43 Bicompax

Owners widely praise the Fortis Original for its tool-watch aesthetic, legibility, and robust construction, with many noting excellent lume that lasts all night and precise day/date changes at midnight. The brushed stainless steel case is well-finished, and the 38mm size is considered comfortable and well-weighted despite being smaller than modern watches. Accuracy figures range from +2 seconds/day to +8 seconds/day, and some owners compare Fortis quality favorably to Omega. However, some users find the MSRP too high compared to brands like Sinn and Damasko, and one owner reported internal parts dislodging from a limited edition model. Concerns have also been raised about stripped lug screws on B-42 models and potential parts shortages due to past bankruptcy protection filings. Overall, owners rate the Fortis Original highly for its durable construction and tool-watch functionality at a competitive price point.

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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