Side by side

Formex Field AutomaticvsFortis Marinemaster M-40

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

Field Automatic
FormexField Automatic
MSRP $881
Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520

At a glance

12 of 29 specs differ
Diameter
Field Automatic40mm
Marinemaster M-4040mm
Power Reserve
Field Automatic41h
Marinemaster M-4038h
Water Resistance
Field Automatic150m
Marinemaster M-40300m
MSRP
Field Automatic$881
Marinemaster M-40$3,520

Full specifications

Case

6 specs
Category
Field
Diver
Thickness
10.6mm
13mm
Lug-to-Lug
46.6mm
Lug Width
20mm
21mm
Material
Titanium
Stainless Steel
Water Resistance
150m
300m

Crystal & Dial

2 specs
Dial Color
Ash Grey
Orange
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW200-1
Sellita SW220-1
Power Reserve
41h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$881
$3,520

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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.

Formex Field Automatic

Owners widely praise the Formex Field Automatic for its lightweight, scratch-resistant Grade 2 titanium case with a hardening treatment and its comfortable wearability, especially with quick-release straps and a carbon clasp. Reviewers and owners alike highlight the dial's legibility and depth, with one noting the Petrol Blue's great color and subtle texture. The Sellita SW200-1 movement is considered a practical choice, with one owner reporting accuracy of +1 second per day. The watch offers 150m water resistance and is seen as good value under $1000. Some owners desire a matching titanium bracelet and find the numeral typography less appealing. Overall, owners and reviewers rate the Formex Field Automatic highly for its robust, comfortable titanium construction and functional dial design at its price point.

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.

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