Side by side

Tudor Black Bay One 31 S&GvsYema Rallygraf Meca-Quartz

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
Rallygraf Meca-Quartz
YemaRallygraf Meca-Quartz
MSRP $420

At a glance

14 of 29 specs differ
Diameter
Black Bay One 31 S&G31mm
Rallygraf Meca-Quartz39mm
Power Reserve
Black Bay One 31 S&G50h
Rallygraf Meca-Quartz40h
Water Resistance
Black Bay One 31 S&G100m
Rallygraf Meca-Quartz50m
MSRP
Black Bay One 31 S&G$6,850
Rallygraf Meca-Quartz$420

Full specifications

Case

9 specs
Category
Chronograph
Diameter
31mm
39mm
Thickness
9.5mm
11mm
Lug-to-Lug
46mm
Lug Width
17mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Polished + Satin
Brushed and polished
Water Resistance
100m
50m
Caseback
Solid screw-down
Solid

Crystal & Dial

1 specs
Dial Color
Black
Panda

Movement

3 specs
Caliber
MT5201
Type
Automatic
Quartz
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$6,850
$420

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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.

Yema Rallygraf Meca-Quartz

Owners widely praise the Yema Rallygraf Meca-Quartz for its heritage reissue design, small and thin case, and good looks for the price, with some noting exceptional build quality, tactile pushers, and a substantial feel. However, the quartz movement's ticking smoothness and the 24-hour subdial, which functions as an AM/PM indicator rather than a totalizer, are points of criticism for some, leading to perceptions of it being overpriced. Owners report mixed experiences with quality control, with some noting alignment issues, crooked indices, and dial rotation when pushers are depressed, while others report no such issues. On balance, owners appreciate the Yema Rallygraf Meca-Quartz for its distinctive vintage styling and wearability, despite some concerns regarding quality control and the functionality of its subdial.

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