Side by side

Glycine Combat SubvsTudor Black Bay One 31 S&G

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

Combat Sub
GlycineCombat Sub
MSRP $1,850
Black Bay One 31 S&G
TudorBlack Bay One 31 S&G
MSRP $6,850

At a glance

17 of 29 specs differ
Diameter
Combat Sub36mm
Black Bay One 31 S&G31mm
Power Reserve
Combat Sub38h
Black Bay One 31 S&G50h
Water Resistance
Combat Sub300m
Black Bay One 31 S&G100m
MSRP
Combat Sub$1,850
Black Bay One 31 S&G$6,850

Full specifications

Case

8 specs
Category
Diver
Diameter
36mm
31mm
Thickness
12mm
9.5mm
Lug-to-Lug
46mm
Lug Width
18mm
17mm
Finish
Polished + Satin
Water Resistance
300m
100m
Caseback
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Indices
Applied
Lume
Luminous
None

Movement

4 specs
Caliber
SW200-1
MT5201
Power Reserve
38h
50h
Jewels
26
25
Complications
Date
None

Pricing

1 specs
MSRP
$1,850
$6,850

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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.

Glycine Combat Sub

The Glycine Combat Sub is widely praised for its excellent value, thin case height (ranging from 10.4mm to 10.8mm), and comfortable wearability due to downward-curving lugs, with owners noting its quality and finishing punch well above its price point. Reviewers and owners consistently highlight its smooth bezel action, crisp font, and a unique aesthetic that avoids being a direct homage. However, criticisms include sub-par lume that is difficult to read in low light and an inconsistent power reserve, with some owners suggesting it may require servicing. Opinions are split on the 42mm size, with some finding it perfect and others preferring a smaller variant. On balance, owners and reviewers rate the Glycine Combat Sub highly for its exceptional thinness and quality finishing at its price point.

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.

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