Side by side

Tudor Black Bay One 31 S&GvsZelos Aurora Field

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

Black Bay One 31 S&G
TudorBlack Bay One 31 S&G
MSRP $6,850
Aurora Field
ZelosAurora Field
MSRP $529

At a glance

13 of 29 specs differ
Diameter
Black Bay One 31 S&G31mm
Aurora Field42mm
Power Reserve
Black Bay One 31 S&G50h
Aurora Field40h
Water Resistance
Black Bay One 31 S&G100m
Aurora Field200m
MSRP
Black Bay One 31 S&G$6,850
Aurora Field$529

Full specifications

Case

9 specs
Category
Field
Diameter
31mm
42mm
Thickness
9.5mm
12.2mm
Lug-to-Lug
46mm
42mm
Lug Width
17mm
22mm
Material
Stainless Steel
Titanium
Finish
Polished + Satin
Brushed and polished
Water Resistance
100m
200m
Caseback
Solid screw-down
Solid

Crystal & Dial

1 specs
Dial Color
Black
Bronze

Movement

2 specs
Caliber
MT5201
Miyota 9039
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$6,850
$529

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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.

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.

Zelos Aurora Field

The Zelos Aurora Field is praised for its unique and gorgeous dial, with the hammered teal bronze version and its great lume, particularly on the minute track, being singled out. Owners find the rubber strap comfortable and flexible with good hardware, and the watch is highlighted as feature-packed for its price point, including 200m water resistance, Grade 2 titanium, and 30,000 A/m anti-magnetism, with the new clasp noted as the best to date. However, some owners criticize sharp bracelet edges, an odd case shape with lugs that cause it to wear high, and dial text that appears cheap and plasticky, with one commenter finding the straight lugs look a bit off. Overall, owners rate the Zelos Aurora Field highly for its value and unique dial, despite some concerns about case and bracelet finishing.

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