Side by side

Bremont Supermarine 300MvsMaen Skymaster 38 MKIII

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Skymaster 38 MKIII
MaenSkymaster 38 MKIII
MSRP $1,679

At a glance

10 of 29 specs differ
Diameter
Supermarine 300M40mm
Skymaster 38 MKIII38mm
Power Reserve
Supermarine 300M40h
Skymaster 38 MKIII40h
Water Resistance
Supermarine 300M300m
Skymaster 38 MKIII100m
MSRP
Supermarine 300M$3,550
Skymaster 38 MKIII$1,679

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
40mm
38mm
Thickness
12mm
13.4mm
Lug Width
20mm
Material
904L Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Green
M6.1.1

Movement

1 specs
Caliber
BE-92AE
Sellita SW510mb

Pricing

1 specs
MSRP
$3,550
$1,679

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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.

Maen Skymaster 38 MKIII

The Maen Skymaster 38 MKIII is praised for its refined case, impressive fit and finish, and compact 38mm size, which offers a premium feel with a sharp, legible dial and well-executed applied markers. Reviewers note the sweet winding action and the vintage-inspired brown sunburst dial with dauphine hands and lollipop register pointers. The watch is powered by a manual-wind Sellita SW510Mb movement with a 63-hour power reserve. Accuracy figures vary, with one reviewer reporting +7 seconds per day and another stating a tolerance of +/-15 seconds per day. On balance, owners and reviewers appreciate the Maen Skymaster 38 MKIII for its refined vintage-inspired design and compact dimensions at its price point.

From video reviewers

The 38mm case size is a key strength for the Maen Skymaster 38 MKIII. Reviewers noted the excellent quality-price ratio for a Swiss-made chronograph.

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