Side by side

Fortis Marinemaster M-40vsGlycine Airman No. 1 GMT

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

Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520
Airman No. 1 GMT
GlycineAirman No. 1 GMT
MSRP $2,800

At a glance

17 of 29 specs differ
Diameter
Marinemaster M-4040mm
Airman No. 1 GMT36mm
Power Reserve
Marinemaster M-4038h
Airman No. 1 GMT48h
Water Resistance
Marinemaster M-40300m
Airman No. 1 GMT30m
MSRP
Marinemaster M-40$3,520
Airman No. 1 GMT$2,800

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
36mm
Thickness
13mm
11.6mm
Lug Width
21mm
20mm
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

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

Movement

4 specs
Caliber
Sellita SW220-1
SW330-2
Power Reserve
38h
48h
Jewels
26
25
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$3,520
$2,800

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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.

Fortis Marinemaster M-40

Owners praise the Fortis Amber Orange for its gorgeous appearance and strong wrist presence, noting its crazy lume and 70-hour power reserve. The Doxa SUB 300T, described as having a superb, eccentric design with a highly legible dial and functional no-decompression bezel, uses an ETA 2824-2 movement. However, the SUB 300T's 42.5mm case wears large and its 14mm thickness is not ideal for dress shirts, though it boasts 1,200m water resistance. On balance, owners appreciate the Fortis Amber Orange for its striking aesthetics and impressive lume.

Glycine Airman No. 1 GMT

Owners widely praise the Glycine Airman No. 1 GMT for its historical significance and attractive dial. However, some find the 36mm case size to be a bit small, and the GMT hand can be difficult to distinguish from the minute hand. The watch has a very limited 3ATM water resistance. Later versions feature sapphire crystals, differing from earlier plexi models. Overall, owners value the Glycine Airman No. 1 GMT for its historical appeal and dial design, despite minor legibility and sizing concerns.

From video reviewers

The case finishing and dial colors are praised. The value proposition is tied to a sale price, with questions about long-term competitiveness.

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