Side by side

Gruppo Gamma Vanguard WeatheredvsSeestern S446 GMT

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

Vanguard Weathered
Gruppo GammaVanguard Weathered
MSRP $790
S446 GMT
SeesternS446 GMT
MSRP $299

At a glance

17 of 29 specs differ
Diameter
Vanguard Weathered42mm
S446 GMT39.5mm
Power Reserve
Vanguard Weathered42h
S446 GMT41hh
Water Resistance
Vanguard Weathered100m
S446 GMT100m
MSRP
Vanguard Weathered$790
S446 GMT$299

Full specifications

Case

7 specs
Category
GMT
Diameter
42mm
39.5mm
Thickness
12.6mm
13mm
Lug-to-Lug
49.5mm
47mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Weathered
Brushed and polished

Crystal & Dial

4 specs
Crystal Shape
Flat
Domed
AR Coating
Yes
Inner
Dial Color
Forged Carbon
Cream
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
Miyota 9039
Seiko NH34A GMT
Beat Rate
28,800 vph
3 vph
Power Reserve
42h
41hh
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$790
$299

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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.

Gruppo Gamma Vanguard Weathered

The satin-finished steel case is well-executed and aesthetically pleasing. The watch's lumières de nuit are not particularly bright, which might be a drawback for some users. Reviewers disagree on the watch's originality, with one reviewer finding it pleasing in-person and another describing it as decidedly derivative.

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.

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