Side by side

Seestern S446 GMTvsYema Navygraf Marine Nationale Quartz

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

S446 GMT
SeesternS446 GMT
MSRP $299
Navygraf Marine Nationale Quartz
YemaNavygraf Marine Nationale Quartz
MSRP $499

At a glance

14 of 29 specs differ
Diameter
S446 GMT39.5mm
Navygraf Marine Nationale Quartz39mm
Power Reserve
S446 GMT41hh
Navygraf Marine Nationale Quartz40h
Water Resistance
S446 GMT100m
Navygraf Marine Nationale Quartz100m
MSRP
S446 GMT$299
Navygraf Marine Nationale Quartz$499

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
39.5mm
39mm
Thickness
13mm
11mm
Lug-to-Lug
47mm
Lug Width
20mm
19mm

Crystal & Dial

2 specs
Crystal Shape
Domed
Flat
Dial Color
Cream
Standard

Movement

6 specs
Caliber
Seiko NH34A GMT
Type
Automatic
Quartz
Beat Rate
3 vph
28,800 vph
Power Reserve
41hh
40h
Jewels
24
25
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$299
$499

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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.

Seestern S446 GMT

Owners widely praise the Seestern S446 GMT for its stunning finishing and extreme value, with a sapphire crystal and adjustable clasp. The winding action is noted as buttery smooth, and the 39.5mm case size is considered very wearable. Some owners, however, flag the lume as a weak point and one owner found the bracelet clasp lacked sufficient micro-adjustment. The Seestern S446 GMT is considered an extreme value for the dollar. Overall, owners rate the Seestern S446 GMT highly for its exceptional finishing and value proposition at its price point.

Yema Navygraf Marine Nationale Quartz

Owners praise the Yema Navygraf Marine Nationale Quartz for its well-made case, clean legible dial, and comfortable 39mm size, with one noting its thin profile for 300m water resistance. Accuracy figures vary, with one owner reporting +6 seconds per day and another seeing it keep within COSC time. Minor criticisms include a steel bracelet with a slight rattle and sharp edges, bent bracelet pins, and in one instance, crooked dial printing. On balance, owners find the Yema Navygraf Marine Nationale Quartz offers good value and wearability, with its French design and thinner case being key highlights.

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