Side by side

Sinn 155 S Revolution IIvsFortis Marinemaster M-40

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

155 S Revolution II
Sinn155 S Revolution II
MSRP $4,050
Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520

At a glance

17 of 29 specs differ
Diameter
155 S Revolution II43mm
Marinemaster M-4040mm
Power Reserve
155 S Revolution II48h
Marinemaster M-4038h
Water Resistance
155 S Revolution II100m
Marinemaster M-40300m
MSRP
155 S Revolution II$4,050
Marinemaster M-40$3,520

Full specifications

Case

7 specs
Category
Tool
Diver
Diameter
43mm
40mm
Thickness
14.75mm
13mm
Lug Width
20mm
21mm
Finish
bead-blasted
Brushed and polished
Water Resistance
100m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Black
Orange
Indices
Applied
Lume
Luminescent
None

Movement

4 specs
Caliber
SW 510
Sellita SW220-1
Power Reserve
48h
38h
Jewels
27
26
Complications
Chronograph, Pilot's Bezel
None

Pricing

1 specs
MSRP
$4,050
$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.

Sinn 155 S Revolution II

The Sinn 155 S Revolution II is widely praised for its TEGIMENT-hardened, black PVD-coated stainless steel case and sapphire crystal, contributing to its durable tool watch identity. Reviewers note its legible bicompax dial with aged-look Super-LumiNova and a ghost-effect bezel, powered by a Sellita SW510 automatic chronograph movement. Owners report a slight misalignment in the 30-minute counter hand, which Sinn considers within tolerance. The watch's 43mm diameter and 51mm lug-to-lug measurement are considered large by some. Price points vary across sources, with one stating $3600 and another $2500 for this limited edition. On balance, owners and reviewers appreciate the Sinn 155 S Revolution II's robust build and vintage-inspired design, despite its substantial size and a minor hand alignment concern.

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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