Side by side
Core Timepieces Original SinvsSheffield GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Original Sin42mm
GMT40mm
Power Reserve
Original Sin—
GMT—
Water Resistance
Original Sin300m
GMT200m
MSRP
Original Sin$549
GMT—
Full specifications
Case
7 specsCategory
—
GMT
Diameter
42mm
40mm
Thickness
—
13mm
Lug-to-Lug
—
48mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
300m
200m
Crystal & Dial
1 specsDial Color
Red
Blue
Movement
1 specsCaliber
Seiko NH36A
Seiko NH34
Pricing
1 specsMSRP
—
—
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