Side by side
Core Timepieces Original SinvsTudor Black Bay GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
21 of 29 specs differDiameter
Original Sin42mm
Black Bay GMT41mm
Power Reserve
Original Sin—
Black Bay GMT70h
Water Resistance
Original Sin300m
Black Bay GMT200m
MSRP
Original Sin$549
Black Bay GMT$5,275
Full specifications
Case
9 specsCategory
—
GMT
Diameter
42mm
41mm
Thickness
—
14.6mm
Lug-to-Lug
—
46mm
Lug Width
22mm
22mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Red
Black
Indices
Applied
—
Movement
7 specsCaliber
Seiko NH36A
MT5652
Beat Rate
28,800 vph
0 vph
Power Reserve
—
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT
Pricing
1 specsMSRP
—
$5,275
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