Side by side

Bremont Supermarine 300MvsGlycine Airman GMT

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Airman GMT
GlycineAirman GMT
MSRP $2,700

At a glance

17 of 29 specs differ
Diameter
Supermarine 300M40mm
Airman GMT42mm
Power Reserve
Supermarine 300M40h
Airman GMT48h
Water Resistance
Supermarine 300M300m
Airman GMT100m
MSRP
Supermarine 300M$3,550
Airman GMT$2,700

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
42mm
Lug Width
20mm
22mm
Material
904L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
100m
Caseback
Solid

Crystal & Dial

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

Movement

4 specs
Caliber
BE-92AE
SW330-2
Power Reserve
40h
48h
Jewels
25
21
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$3,550
$2,700

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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 Airman GMT

Owners widely appreciate the Glycine Airman GMT's classic pilot design and consider it a well-built watch, with some noting the 39mm models offer perfect sizing and 200m water resistance. Reviewers praise the plexiglass crystal and matte dial, while some owners find the GMT hand visually similar to the minute hand, making it difficult to read. Accuracy from the Sellita-based movement is described as acceptable, though dial lume pips are noted as weaker than the hands. On balance, owners and reviewers value the Glycine Airman GMT for its faithful reproduction of a classic pilot watch design, despite some legibility concerns with the GMT hand.

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