Side by side

Tudor Black Bay One 31 S&GvsLongines LONGINES SECTOR DIAL

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
LONGINES SECTOR DIAL
LonginesLONGINES SECTOR DIAL
MSRP $2,750

At a glance

11 of 29 specs differ
Diameter
Black Bay One 31 S&G31mm
LONGINES SECTOR DIAL38.5mm
Power Reserve
Black Bay One 31 S&G50h
LONGINES SECTOR DIAL40h
Water Resistance
Black Bay One 31 S&G100m
LONGINES SECTOR DIAL30m
MSRP
Black Bay One 31 S&G$6,850
LONGINES SECTOR DIAL$2,750

Full specifications

Case

7 specs
Diameter
31mm
38.5mm
Thickness
9.5mm
11mm
Lug-to-Lug
46mm
47.6mm
Lug Width
17mm
19mm
Finish
Polished + Satin
Brushed and polished
Water Resistance
100m
30m
Caseback
Solid screw-down
Solid

Crystal & Dial

1 specs
Dial Color
Black
Ivory

Movement

2 specs
Caliber
MT5201
L893.5
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$6,850
$2,750

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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.

LONGINES SECTOR DIAL

The Longines Sector Dial wins broad praise for its faithful 1934-inspired sector dial design and exceptional readability, paired with a well-proportioned 38.5mm case that appeals to fans of vintage proportions. Owners consistently highlight the dial's visual presence in sunlight and strong value relative to Longines' current positioning, while reviewers commend the modern L893 movement with silicon hairspring and clean finishing. The 47mm lug-to-lug length and 19mm lug width draw mixed reactions — some find the lugs elongated for the case size, and one owner views the strap width as undersizing the case proportionally; others note the small seconds subdial bisects the 6, and the polished caseback invites scratches. The 30-meter water resistance is flagged as modest for daily wear.

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