Side by side

Borealis Watch Co. Estoril 300 GMTvsLongines LONGINES SPIRIT ZULU TIME

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

Estoril 300 GMT
Borealis Watch Co.Estoril 300 GMT
MSRP $600
LONGINES SPIRIT ZULU TIME
LonginesLONGINES SPIRIT ZULU TIME
MSRP $5,200

At a glance

10 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
LONGINES SPIRIT ZULU TIME39mm
Power Reserve
Estoril 300 GMT40h
LONGINES SPIRIT ZULU TIME40h
Water Resistance
Estoril 300 GMT300m
LONGINES SPIRIT ZULU TIME100m
MSRP
Estoril 300 GMT$600
LONGINES SPIRIT ZULU TIME$5,200

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
41.50mm
39mm
Thickness
13.5mm
13.5mm
Lug-to-Lug
47mm
46.8mm
Lug Width
20mm
21mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
Anthracite
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9075
L844.4

Pricing

1 specs
MSRP
$600
$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.

Borealis Watch Co. Estoril 300 GMT

Owners widely praise the Borealis Watch Co. Estoril 300 GMT for its excellent value, robust build quality, and crisp dial, with reviewers highlighting its exceptionally bright BGW9 lume and dive-ready ceramic bezel. Some owners appreciate the brushed and polished finishes, though one owner noted a desire for a white-painted second hand. The included NATO strap is considered too thick with a loose weave, and the sapphire bezel insert is seen by some as a minor aesthetic departure from its inspirations. Overall, owners rate the Borealis Watch Co. Estoril 300 GMT highly for its impressive build quality and value.

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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