Side by side

Tudor Black Bay 58 18KvsLongines SPIRIT ZULU TIME

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

Black Bay 58 18K
TudorBlack Bay 58 18K
MSRP $22,550
SPIRIT ZULU TIME
LonginesSPIRIT ZULU TIME
MSRP $3,550

At a glance

17 of 29 specs differ
Diameter
Black Bay 58 18K39mm
SPIRIT ZULU TIME39mm
Power Reserve
Black Bay 58 18K70h
SPIRIT ZULU TIME72h
Water Resistance
Black Bay 58 18K200m
SPIRIT ZULU TIME100m
MSRP
Black Bay 58 18K$22,550
SPIRIT ZULU TIME$3,550

Full specifications

Case

8 specs
Category
Diver
GMT
Thickness
12.7mm
13.5mm
Lug-to-Lug
46mm
46.8mm
Lug Width
20mm
21mm
Material
18k Yellow Gold
Ceramic
Finish
Satin
Water Resistance
200m
100m
Caseback
Solid screw-down
Screw-down case back

Crystal & Dial

4 specs
AR Coating
Both sides
Dial Color
Green
Anthracite
Indices
Applied Arabic numerals
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
MT5400
L844.4
Beat Rate
0 vph
25,200 vph
Power Reserve
70h
72h
Complications
None
Hours, minutes, seconds and date, 24 hours hand with time zone mechanism

Pricing

1 specs
MSRP
$22,550
$3,550

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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.

Tudor Black Bay 58 18K

Owners appreciate the substantial feel of the 18K gold Tudor Black Bay 58 on the wrist, with reviewers noting the brushed gold finishing and 39mm case size. The watch is powered by the COSC-certified Manufacture Caliber MT5400 with a 70-hour power reserve, visible through an open caseback. Sources offer differing price points, ranging from $16,800 to $32,100 depending on the strap or bracelet. Some reviewers criticize the brushed finish for diminishing the visual luxury of gold and find the green dial and bezel color combination divisive or lacking charisma. Overall, owners and reviewers find the Tudor Black Bay 58 18K to be an ambitious, albeit divisive, precious metal sports watch, with praise for its substantial feel and brushed gold finishing.

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.

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