Side by side

Spinnaker Croft 39 GMTvsTudor Black Bay 58 18K

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

Croft 39 GMT
SpinnakerCroft 39 GMT
MSRP $445
Black Bay 58 18K
TudorBlack Bay 58 18K
MSRP $22,550

At a glance

18 of 29 specs differ
Diameter
Croft 39 GMT39mm
Black Bay 58 18K39mm
Power Reserve
Croft 39 GMT40h
Black Bay 58 18K70h
Water Resistance
Croft 39 GMT100m
Black Bay 58 18K200m
MSRP
Croft 39 GMT$445
Black Bay 58 18K$22,550

Full specifications

Case

7 specs
Category
GMT
Diver
Thickness
13mm
12.7mm
Lug-to-Lug
47mm
46mm
Material
316L Stainless Steel
18k Yellow Gold
Finish
Brushed and polished
Satin
Water Resistance
100m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Red
Green
Indices
Applied

Movement

6 specs
Caliber
Seiko NH34A
MT5400
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$445
$22,550

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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.

Spinnaker Croft 39 GMT

Owners praise the Spinnaker Croft 39 GMT for its colorful design, NH34 GMT movement, and reasonable price, noting high-standard manufacturing on the case, bezel, and bracelet. One owner finds the 43mm case and 51mm lug-to-lug dimensions too large for the design, preferring a 39-40mm case size. A potential issue with the lume was noted by one user. On balance, owners value the Spinnaker Croft 39 GMT for its attractive design and build quality at its price point, though sizing is a point of contention for some.

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.

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