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 $3,950

At a glance

20 of 29 specs differ
Diameter
Black Bay One 31 S&G31mm
MASTER COLLECTION29mm
Power Reserve
Black Bay One 31 S&G50h
MASTER COLLECTION45h
Water Resistance
Black Bay One 31 S&G100m
MASTER COLLECTION30m
MSRP
Black Bay One 31 S&G$6,850
MASTER COLLECTION$3,950

Full specifications

Case

9 specs
Category
Diameter
31mm
29mm
Thickness
9.5mm
9mm
Lug-to-Lug
46mm
34.5mm
Lug Width
17mm
15mm
Material
Stainless Steel
18k Yellow Gold
Finish
Polished + Satin
Water Resistance
100m
30m
Caseback
Solid screw-down

Crystal & Dial

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

Movement

6 specs
Caliber
MT5201
L592.5
Beat Rate
28,800 vph
0 vph
Power Reserve
50h
45h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$6,850
$3,950

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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 finishing and value, with owners highlighting its classic design and dressy profile. Reviewers note the beautiful dial execution, featuring engraved Breguet numerals and snailed subdials on some variants, and the smooth winding feel of the automatic movements. The Master Collection Chronograph is specifically lauded for its column wheel chronograph and moon phase complication at its price point. However, some owners find the bracelet difficult to adjust due to a lack of micro-adjustments, and one reviewer criticized the case finishing and pushers on the chronograph as homogenous and cheap-feeling. The Master Collection Annual Calendar's 30m water resistance is considered light by one source. Overall, owners and reviewers rate the Longines MASTER COLLECTION highly for its classical styling and exceptional value, particularly for its complications and finishing at the price.

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