Side by side

Sinn 534 Mother-of-Pearl WvsFortis Marinemaster M-44

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

534 Mother-of-Pearl W
Sinn534 Mother-of-Pearl W
MSRP $2,230
Marinemaster M-44
FortisMarinemaster M-44
MSRP $5,120

At a glance

15 of 29 specs differ
Diameter
534 Mother-of-Pearl W34mm
Marinemaster M-4444mm
Power Reserve
534 Mother-of-Pearl W42h
Marinemaster M-4438h
Water Resistance
534 Mother-of-Pearl W100m
Marinemaster M-44300m
MSRP
534 Mother-of-Pearl W$2,230
Marinemaster M-44$5,120

Full specifications

Case

7 specs
Category
Tool
Diver
Diameter
34mm
44mm
Thickness
9mm
14mm
Lug Width
18mm
22mm
Finish
Brushed and polished
Water Resistance
100m
300m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
White
Orange
Lume
Luminescent
None

Movement

3 specs
Caliber
SW 300-1
Sellita SW220-1
Power Reserve
42h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$2,230
$5,120

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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 534 Mother-of-Pearl W

Owners widely praise the Sinn 534 Mother-of-Pearl W for its excellent timekeeping, consistently reporting accuracy around -1s/day, and the high quality of its bracelet, which features an impressive butterfly clasp. The double-AR coated crystal is noted for its near-invisibility, enhancing the dial's appearance. However, some find the 34mm case size and 18mm lug width too small for wrists 7.5 inches or larger, while others appreciate its vintage-like proportions. The mother-of-pearl dial is described as subtle, appearing gray most of the time with only occasional flashes of color, which some feel contributes to its tool-watch aesthetic. The crown is noted as potentially bothersome if the watch is worn loosely. On balance, owners rate the Sinn 534 Mother-of-Pearl W highly for its subtle dial execution and robust build quality, particularly appreciating its precise timekeeping and refined bracelet.

Fortis Marinemaster M-44

The Fortis Marinemaster M-44 is praised for its excellent build quality and wearability, featuring a highly legible dial and a COSC-certified Kenissi-based movement that ran at 0 seconds per day. Owners appreciate its 70-hour power reserve and the inclusion of multiple straps and a deployant buckle, noting its gorgeous appearance and great wrist presence. A minor point raised is the 21mm lug width, with a wish for it to be 22mm. The Fortis Marinemaster M-44 is priced at $4,150. Overall, owners and reviewers rate the Fortis Marinemaster M-44 highly for its robust specifications and comfortable wearability at its price point.

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