Side by side

Grand Seiko SLGW007vsTudor Black Bay 58 GMT

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

SLGW007
Grand SeikoSLGW007
MSRP $10,000
Black Bay 58 GMT
TudorBlack Bay 58 GMT
MSRP $5,525

At a glance

19 of 29 specs differ
Diameter
SLGW00738.6mm
Black Bay 58 GMT39mm
Power Reserve
SLGW00780h
Black Bay 58 GMT65h
Water Resistance
SLGW00730m
Black Bay 58 GMT200m
MSRP
SLGW007$10,000
Black Bay 58 GMT$5,525

Full specifications

Case

8 specs
Category
Dress
GMT
Diameter
38.6mm
39mm
Thickness
9.95mm
12.8mm
Lug-to-Lug
45mm
Lug Width
20mm
12.8mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
30m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

2 specs
Crystal Shape
Flat
AR Coating
Yes

Movement

8 specs
Caliber
9SA4
MT5450-U
Type
Manual
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
80h
65h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT

Pricing

1 specs
MSRP
$10,000
$5,525

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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.

Grand Seiko SLGW007

Grand Seiko SLGW007 owners and reviewers praise its compact 38.6mm x 9.95mm Evolution 9 case and the textured "Moonlit Birch" dial, described as moody, elegant, and captivating. The technically credible 9SA4 hand-wound movement with an 80-hour power reserve is also highlighted. Its 30m water resistance and lack of lume are noted as appropriate for a dress watch. Overall, owners and reviewers rate the Grand Seiko SLGW007 highly for its refined case, captivating dial, and updated movement.

Tudor Black Bay 58 GMT

The Tudor Black Bay 58 GMT is widely praised for its functional, proportional, and ergonomic design, wearing identically to the standard Black Bay 58 and feeling substantial without being oversized. Owners are very happy with the 39mm case proportions, noting an improved 12.8mm height. The gilt dial aesthetics and gilt-effect accents are a point of praise for some, while others find them divisive. The Tudor Black Bay 58 GMT features the METAS-certified MT5450-U movement, which is anti-magnetic to 15,000 Gauss and offers a 65-hour power reserve. On balance, owners and reviewers rate the Tudor Black Bay 58 GMT highly for its improved case proportions and gilt dial aesthetics.

From video reviewers

The comfortable 39mm case size is a significant strength. The value at its price point is also a shared positive. Reviewers did not reach a consensus on any weaknesses.

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