Side by side

Longines SPIRIT ZULU TIMEvsZelos Comet 39

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

SPIRIT ZULU TIME
LonginesSPIRIT ZULU TIME
MSRP $3,550
Comet 39
ZelosComet 39
MSRP $2,499

At a glance

23 of 29 specs differ
Diameter
SPIRIT ZULU TIME39mm
Comet 3939mm
Power Reserve
SPIRIT ZULU TIME72h
Comet 3940h
Water Resistance
SPIRIT ZULU TIME100m
Comet 3950m
MSRP
SPIRIT ZULU TIME$3,550
Comet 39$2,499

Full specifications

Case

8 specs
Category
GMT
Dress
Thickness
13.5mm
7.6mm
Lug-to-Lug
46.8mm
39mm
Lug Width
21mm
20mm
Material
Ceramic
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
100m
50m
Caseback
Screw-down case back
Solid

Crystal & Dial

6 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Flat
AR Coating
Both sides
Inner
Dial Color
Anthracite
Tantalum LE
Indices
Applied Arabic numerals
Applied
Lume
Super-LumiNova
None

Movement

8 specs
Caliber
L844.4
ETA/Peseux 7001
Type
Automatic
Manual
Beat Rate
25,200 vph
28,800 vph
Power Reserve
72h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Hours, minutes, seconds and date, 24 hours hand with time zone mechanism
None

Pricing

1 specs
MSRP
$3,550
$2,499

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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.

Longines SPIRIT ZULU TIME

Owners widely praise the Longines Spirit Zulu Time for its excellent fit and finish, visual appeal, and value, with many preferring its thinner titanium case and color-matched date wheel. Reviewers highlight its legibility and comfortable 39mm wearability, while some owners note the bracelet could be weightier and lacks tool-less micro-adjustment. Accuracy figures range from +5 seconds per day to unspecified, and one owner reported condensation risk in hot tubs. On balance, owners and reviewers rate the Longines Spirit Zulu Time highly for its blend of tool-watch utility and segment-leading finishing at its price point.

From video reviewers

The 18k gold capped bezel insert is a notable feature, adding a touch of luxury to the watch. However, the watch's lume is not as bright as some reviewers would like, which is a drawback for those who prioritize good illumination. Reviewers disagree on the watch's functionality, with some considering it a compelling option and others feeling it doesn't quite live up to its design.

Zelos Comet 39

Owners widely praise the Zelos Comet 39 for its wearable 39mm size, thin profile under 10mm thanks to its manual-wind Sellita SW215 movement, and its captivating dial with a deep starburst effect. The winding action is described as a joy, and the watch is considered a stunner for its price, blending modern and vintage aesthetics. Some owners note frustration with Zelos's limited production runs leading to quick sell-outs. One owner found the logo childlike, while another experienced strap-rubbing issues with the short lugs, which were resolved with a Milanese bracelet. Overall, owners and reviewers rate the Zelos Comet 39 highly for its excellent value and striking dial design.

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