Side by side

Oris Big Crown ProPilot Big Day DatevsFortis Marinemaster M-40

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

Big Crown ProPilot Big Day Date
OrisBig Crown ProPilot Big Day Date
MSRP $2,900
Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520

At a glance

16 of 29 specs differ
Diameter
Big Crown ProPilot Big Day Date44mm
Marinemaster M-4040mm
Power Reserve
Big Crown ProPilot Big Day Date38 hoursh
Marinemaster M-4038h
Water Resistance
Big Crown ProPilot Big Day Date100m
Marinemaster M-40300m
MSRP
Big Crown ProPilot Big Day Date$2,900
Marinemaster M-40$3,520

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
44mm
40mm
Thickness
13mm
Lug Width
22mm
21mm
Finish
Brushed and polished
Water Resistance
100m
300m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Blue
Orange
Indices
Applied

Movement

4 specs
Caliber
752
Sellita SW220-1
Beat Rate
4 vph
28,800 vph
Power Reserve
38 hoursh
38h
Complications
Date, Day
None

Pricing

1 specs
MSRP
$2,900
$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.

Oris Big Crown ProPilot Big Day Date

Owners and reviewers widely praise the Oris Big Crown ProPilot Big Day Date for its excellent legibility, clear dial with large numerals, and fine brushed finishing on the case and bracelet. The turbine-style bezel and instrument-inspired hands are frequently highlighted as unique design elements. However, several owners report that the lume fades quickly and the Sellita SW220-1 movement can be noisy, running approximately +10 seconds per day, though one owner reported +8 seconds per day and another noted accuracy of +2s/d on a different model. The bracelet clasp is described as having limited adjustment, and attaching or detaching the bracelet can be difficult due to tight tolerances, with some owners finding the 45mm case size too large for smaller wrists. Overall, owners and reviewers appreciate the Oris Big Crown ProPilot Big Day Date for its strong legibility and distinctive pilot watch 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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