Side by side

AVI-8 Spitfire Lock ChronographvsFortis Marinemaster M-40

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

Spitfire Lock Chronograph
AVI-8Spitfire Lock Chronograph
MSRP $260
Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520

At a glance

13 of 29 specs differ
Diameter
Spitfire Lock Chronograph42mm
Marinemaster M-4040mm
Power Reserve
Spitfire Lock Chronograph40h
Marinemaster M-4038h
Water Resistance
Spitfire Lock Chronograph50m
Marinemaster M-40300m
MSRP
Spitfire Lock Chronograph$260
Marinemaster M-40$3,520

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
42mm
40mm
Thickness
13mm
Lug Width
22mm
21mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

2 specs
Crystal
Mineral
Sapphire
Dial Color
MIDNIGHT OAK
Orange

Movement

4 specs
Caliber
Sellita SW220-1
Type
Quartz
Automatic
Power Reserve
40h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$260
$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.

AVI-8 Spitfire Lock Chronograph

Owners widely report AVI-8 watches offer a compelling design and are decently well made for the price. The AVI-8 Spitfire Lock Chronograph features a 42mm stainless steel case with curved lugs, a bi-compax meca-quartz movement, and a mineral crystal, with design elements inspired by Supermarine Spitfires. One owner notes that AVI-8 watches are "something different" and "decently well made," though not of "insane quality." On balance, owners and reviewers appreciate the AVI-8 Spitfire Lock Chronograph for its unique design and value proposition.

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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