Side by side

Tudor Black Bay One 31 S&GvsLongines MASTER COLLECTION

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
MASTER COLLECTION
LonginesMASTER COLLECTION
MSRP $2,950

At a glance

19 of 29 specs differ
Diameter
Black Bay One 31 S&G31mm
MASTER COLLECTION34mm
Power Reserve
Black Bay One 31 S&G50h
MASTER COLLECTION72h
Water Resistance
Black Bay One 31 S&G100m
MASTER COLLECTION30m
MSRP
Black Bay One 31 S&G$6,850
MASTER COLLECTION$2,950

Full specifications

Case

8 specs
Category
Diameter
31mm
34mm
Thickness
9.5mm
9.2mm
Lug-to-Lug
46mm
41.7mm
Lug Width
17mm
18mm
Finish
Polished + Satin
Water Resistance
100m
30m
Caseback
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Silver
Indices
Applied

Movement

6 specs
Caliber
MT5201
L888.5
Beat Rate
28,800 vph
0 vph
Power Reserve
50h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$6,850
$2,950

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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 MASTER COLLECTION

The Longines Master Collection is widely praised for its excellent value and refined design, with owners and reviewers highlighting its beautiful dials, often featuring Breguet numerals and snailed subdials, and its impressive case and bracelet finishing. The collection is consistently described as traditional and dress-oriented, offering features like column-wheel chronographs and moon phases at competitive price points. However, some owners note drawbacks such as the subdial cutting off numerals, uninspiring pushers and crowns, and a lack of micro-adjustments on the bracelet for a perfect fit. Accuracy figures are not consistently reported across sources, with one owner noting a chronograph hour counter that doesn't always reset to zero. Overall, the Longines Master Collection is highly regarded by owners and reviewers for its sophisticated aesthetics and strong value proposition, particularly for its dress watch and chronograph models.

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