Side by side

Fortis Marinemaster M-40vsOblvlo IM Tourbillon

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
IM Tourbillon
OblvloIM Tourbillon
MSRP $810

At a glance

13 of 29 specs differ
Diameter
Marinemaster M-4040mm
IM Tourbillon42mm
Power Reserve
Marinemaster M-4038h
IM Tourbillon65h
Water Resistance
Marinemaster M-40300m
IM Tourbillon50m
MSRP
Marinemaster M-40$3,520
IM Tourbillon$810

Full specifications

Case

6 specs
Category
Diver
Skeleton
Diameter
40mm
42mm
Thickness
13mm
12.5mm
Lug-to-Lug
46mm
Lug Width
21mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Orange
Black
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
Sellita SW220-1
OBL.8024
Power Reserve
38h
65h
Jewels
26
20
Complications
None
Tourbillon

Pricing

1 specs
MSRP
$3,520
$810

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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.

Oblvlo IM Tourbillon

Owners widely praise the Oblvlo IM Tourbillon for its skeletonized dial and carbon fiber case finishing, noting it looks more expensive than its price. However, some owners find the minute markers difficult to read, impacting time setting, and accuracy averages around -10 seconds per day. Concerns also exist regarding long-term reliability and parts availability for Chinese tourbillons. On balance, owners rate the Oblvlo IM Tourbillon highly for its visually striking aesthetic and perceived value, despite practical readability and accuracy drawbacks.

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