Side by side

Bremont Supermarine 300MvsGlycine Combat Sub Sport

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Combat Sub Sport
GlycineCombat Sub Sport
MSRP $1,650

At a glance

17 of 29 specs differ
Diameter
Supermarine 300M40mm
Combat Sub Sport42mm
Power Reserve
Supermarine 300M40h
Combat Sub Sport38h
Water Resistance
Supermarine 300M300m
Combat Sub Sport200m
MSRP
Supermarine 300M$3,550
Combat Sub Sport$1,650

Full specifications

Case

7 specs
Diameter
40mm
42mm
Thickness
12mm
10.45mm
Lug Width
20mm
22mm
Material
904L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Green
Indices
Applied
Lume
None
Luminous

Movement

4 specs
Caliber
BE-92AE
SW200-1
Power Reserve
40h
38h
Jewels
25
26
Complications
None
Date

Pricing

1 specs
MSRP
$3,550
$1,650

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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.

Bremont Supermarine 300M

The Bremont Supermarine 300M is praised for its comfortable 40mm and 42mm case sizes, with owners noting the 42mm wears well on smaller wrists due to its lug design. One owner highlights the 13mm thinness of the 40mm case, considered compact for a 300m diver. The watch is priced at $1375. On balance, owners and reviewers appreciate the Bremont Supermarine 300M for its wearability and compact dimensions, especially for a dive watch.

Glycine Combat Sub Sport

Owners widely praise the Glycine Combat Sub Sport for its exceptional value, thin profile, and solid build quality, often noting its finishing and wearability as superior for its price point. Reviewers consistently flag its slim case, with measurements around 10.4mm to 10.8mm, and appreciate its non-homage design and comfortable lug curvature. Accuracy figures vary, with one owner reporting only 2 seconds per day loss, while another notes their Sellita SW200 movement runs at +6 to +9 seconds per day. Some owners report inconsistent power reserve not reaching the advertised 42 hours and find the lume sub-par for nighttime legibility. A few also mention sharp bracelet edges and a potentially short bracelet for larger wrists, and one owner dislikes the "COMBAT" text on the dial. On balance, owners and reviewers rate the Glycine Combat Sub Sport highly for its impressive thinness and value as a Swiss automatic diver.

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