Side by side

Gruppo Gamma Vanguard Steel DatevsTudor Black Bay One 31 S&G

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

Vanguard Steel Date
Gruppo GammaVanguard Steel Date
MSRP $790
Black Bay One 31 S&G
TudorBlack Bay One 31 S&G
MSRP $6,850

At a glance

13 of 29 specs differ
Diameter
Vanguard Steel Date42mm
Black Bay One 31 S&G31mm
Power Reserve
Vanguard Steel Date42h
Black Bay One 31 S&G50h
Water Resistance
Vanguard Steel Date100m
Black Bay One 31 S&G100m
MSRP
Vanguard Steel Date$790
Black Bay One 31 S&G$6,850

Full specifications

Case

6 specs
Diameter
42mm
31mm
Thickness
12.6mm
9.5mm
Lug-to-Lug
49.5mm
46mm
Lug Width
22mm
17mm
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Forged Carbon
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Miyota 9015
MT5201
Power Reserve
42h
50h
Complications
Date
None

Pricing

1 specs
MSRP
$790
$6,850

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