Side by side

Fortis Flieger F-43 Triple-GMTvsSeiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation

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

At a glance

13 of 29 specs differ
Diameter
Flieger F-43 Triple-GMT43mm
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation39.5mm
Power Reserve
Flieger F-43 Triple-GMT56h
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation45h
Water Resistance
Flieger F-43 Triple-GMT200m
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation200m
MSRP
Flieger F-43 Triple-GMT$4,840
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation$2,800

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
43mm
39.5mm
Thickness
14mm
12.3mm
Lug-to-Lug
47.2mm
Lug Width
22mm
20mm

Crystal & Dial

4 specs
Crystal Shape
Flat
Box
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Original
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW330-2
6L37
Power Reserve
56h
45h
Jewels
25
26

Pricing

1 specs
MSRP
$4,840
$2,800

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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 Flieger F-43 Triple-GMT

The Fortis Flieger F-43 Triple-GMT is widely praised for its stunning dial execution, COSC-certified Kenissi WERK 13 movement with a 70-hour power reserve, and legible Brixtrack luminous indices. Owners and reviewers highlight the surprisingly wearable 43mm titanium case and bracelet, noting its lightness and comfort despite the size, with one source specifically mentioning a quick-adjustable extension. The watch offers 200m water resistance and features a Synchroline indicator. However, some owners note the titanium scratches easily and the bracelet can be difficult to size. The watch is priced at €4,500. On balance, owners and reviewers rate the Fortis Flieger F-43 Triple-GMT highly for its purpose-focused pilot's watch design and innovative movement.

Seiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation

The Seiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation is noted for its refined, slimmed-down 39.5mm stainless steel case with a "super hard" coating and a box-shaped sapphire crystal. It offers 200 meters of water resistance and is powered by the slim Caliber 6L37 automatic movement, which has a 46-hour power reserve and an accuracy rating of -10/+15 seconds per day. Reviewers highlight its wearability and functionality as a dive watch, with one noting it as Seiko's thinnest diver ever at 12.3mm. However, concerns are raised about Seiko's continued reliance on the 62MAS design, with one reviewer wishing the Marinemaster remained a separate line, and the bracelet's end-links appearing mismatched in initial images. Its price of A$4,650 is considered high given its specifications compared to competitors.

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