Side by side

Formex Reef GMTvsYema Navygraf Marine Nationale Femme

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

Reef GMT
FormexReef GMT
MSRP $2,235
Navygraf Marine Nationale Femme
YemaNavygraf Marine Nationale Femme
MSRP $399

At a glance

13 of 29 specs differ
Diameter
Reef GMT42mm
Navygraf Marine Nationale Femme34mm
Power Reserve
Reef GMT56h
Navygraf Marine Nationale Femme40h
Water Resistance
Reef GMT300m
Navygraf Marine Nationale Femme100m
MSRP
Reef GMT$2,235
Navygraf Marine Nationale Femme$399

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
42mm
34mm
Thickness
11.4mm
10.3mm
Lug-to-Lug
47mm
Lug Width
22mm
16mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
Standard
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW330-2
Type
Automatic
Quartz
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,235
$399

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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.

Formex Reef GMT

The Formex Reef GMT is widely praised for its unique porthole case shape, COSC-certified Sellita SW330-2 movement with good finishing, and comfortable quick-release bracelet with on-the-fly micro-adjustment. Reviewers note its robust construction, impressive specifications, and strong value proposition, with a slim 11.4mm profile accommodating 300m water resistance and an exhibition caseback. However, owners widely report the 53mm lug-to-lug span with male endlinks makes it too large for smaller wrists. Some find the bezel action stiff and potentially slippery, and a reviewer desired sharper finishing and edges, deeming the aesthetic too modernist. The GMT variant sacrifices a timing bezel unless swapped, and one owner notes sharp edges on the crown and crown guard. Overall, owners and reviewers highly rate the Formex Reef GMT for its exceptional value and well-executed features, particularly its bracelet system and COSC-certified movement.

From video reviewers

The watch features a COSC-certified SW330-2 GMT movement, which is visible through a sapphire crystal display case back and beautifully decorated. The watch's water-resistance of up to 300m/1000ft is a notable feature. The 42mm diameter may be too large for smaller wrists.

Yema Navygraf Marine Nationale Femme

The Yema Navygraf Marine Nationale Femme is praised for its clean dial, good bezel action, and robust build for daily wear, with its 39mm case noted as impressively thin at 11mm for 300m water resistance. Owners report accuracy averaging +6 seconds per day. One owner notes sharp edges and a slight rattle on the steel bracelet. The CMM.10 automatic movement offers a 70-hour power reserve. On balance, owners value the Yema Navygraf Marine Nationale Femme for its design and robust build at its price point, despite some concerns about accuracy and bracelet finishing.

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