Side by side
Grand Seiko SBGA384vsTudor Black Bay Chrono S&G
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
21 of 29 specs differDiameter
SBGA38440mm
Black Bay Chrono S&G41mm
Power Reserve
SBGA38472h
Black Bay Chrono S&G70h
Water Resistance
SBGA384100m
Black Bay Chrono S&G200m
MSRP
SBGA384$29,500
Black Bay Chrono S&G$8,525
Full specifications
Case
9 specsCategory
Dress
Chronograph
Diameter
40mm
41mm
Thickness
12.5mm
14.4mm
Lug-to-Lug
46.2mm
46mm
Lug Width
19mm
22mm
Material
Gold
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
100m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
3 specsCrystal Shape
Flat
—
AR Coating
Yes
—
Indices
Applied
—
Movement
8 specsCaliber
9R15
MT5813
Type
Spring Drive
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
72h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Chronograph
Pricing
1 specsMSRP
$29,500
$8,525
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