Side by side

Seestern S446 GMTvsGruppo Gamma Field III GMT Date

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

S446 GMT
SeesternS446 GMT
MSRP $299
Field III GMT Date
Gruppo GammaField III GMT Date
MSRP $459

At a glance

15 of 29 specs differ
Diameter
S446 GMT39.5mm
Field III GMT Date40mm
Power Reserve
S446 GMT41hh
Field III GMT Date41h
Water Resistance
S446 GMT100m
Field III GMT Date200m
MSRP
S446 GMT$299
Field III GMT Date$459

Full specifications

Case

6 specs
Diameter
39.5mm
40mm
Thickness
13mm
14mm
Lug-to-Lug
47mm
48.5mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

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

Movement

4 specs
Caliber
Seiko NH34A GMT
Seiko Instruments NH38A
Beat Rate
3 vph
28,800 vph
Power Reserve
41hh
41h
Jewels
24
25

Pricing

1 specs
MSRP
$299
$459

Follow this matchup

Get a note when Seestern S446 GMT vs Gruppo Gamma Field III GMT Date gets more votes, a community discussion, or a price drop. No account needed.

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.

Gruppo Gamma Field III GMT Date

Owners widely praise the Gruppo Gamma Field III GMT Date for its awesome looks, quality, and good value. The watch features a 40mm brushed 316L stainless steel case, box sapphire crystal, and 200m water resistance, powered by a Seiko NH34A movement. Some reviewers note the NH34A movement's accuracy can range from -20~+40 seconds per day, though one reviewer reported +5 seconds per day with a regulated movement. The dial's dense layout with Arabic numerals can be overwhelming for some, and one owner found the size unsuitable for smaller wrists. On balance, owners rate the Gruppo Gamma Field III GMT Date highly for its impressive finishing and toolish design at its price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.