Side by side

Grand Seiko SBGK007vsTudor Black Bay One 31 S&G

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

SBGK007
Grand SeikoSBGK007
MSRP $7,300
Black Bay One 31 S&G
TudorBlack Bay One 31 S&G
MSRP $6,850

At a glance

13 of 29 specs differ
Diameter
SBGK00739mm
Black Bay One 31 S&G31mm
Power Reserve
SBGK00772h
Black Bay One 31 S&G50h
Water Resistance
SBGK00730m
Black Bay One 31 S&G100m
MSRP
SBGK007$7,300
Black Bay One 31 S&G$6,850

Full specifications

Case

8 specs
Category
Dress
Diameter
39mm
31mm
Thickness
11.6mm
9.5mm
Lug-to-Lug
44mm
46mm
Lug Width
19mm
17mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
30m
100m
Caseback
Solid
Solid screw-down

Crystal & Dial

1 specs
AR Coating
Yes
Inner

Movement

3 specs
Caliber
9S63
MT5201
Type
Manual
Automatic
Power Reserve
72h
50h

Pricing

1 specs
MSRP
$7,300
$6,850

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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 SBGK007

The Grand Seiko SBGK007 is praised for its glorious champagne-to-silver-white sunburst dial and domed sapphire crystal. Owners and reviewers highlight its wonderfully slim profile, attributed to the manual-wind movement, contributing to excellent wearability and a design that subtly evokes vintage pieces. The movement is described as attractive yet workmanlike, with accuracy rated between +5 to -3 seconds per day and a 72-hour power reserve. The watch measures 39mm and 11.6mm thick, and is offered on a high-quality leather strap. On balance, owners and reviewers highly regard the Grand Seiko SBGK007 for its elegant slim case and beautifully textured dial.

Tudor Black Bay One 31 S&G

The Tudor Black Bay One 31 S&G is praised for its quiet luxury, combining brushed steel and warm gold accents for understated charm. Owners appreciate the brushed gold for a casual two-tone look and the champagne dial's surprising legibility. Some find the case sides too thick, and one user expressed a desire for a smaller S&G variant. The watch features the MT5612 movement with a 70-hour power reserve and a date function, within a 200-meter water-resistant case. Overall, owners and reviewers highlight the Tudor Black Bay One 31 S&G's balanced two-tone aesthetic as its primary appeal.

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