Side by side

Seestern S446 GMTvsStudio Underd0g Full Moon

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

S446 GMT
SeesternS446 GMT
MSRP $299
Full Moon
Studio Underd0gFull Moon
MSRP $800

At a glance

15 of 29 specs differ
Diameter
S446 GMT39.5mm
Full Moon39.5mm
Power Reserve
S446 GMT41hh
Full Moon40h
Water Resistance
S446 GMT100m
Full Moon
MSRP
S446 GMT$299
Full Moon$800

Full specifications

Case

6 specs
Category
GMT
Casual
Thickness
13mm
Lug-to-Lug
47mm
Lug Width
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m

Crystal & Dial

2 specs
Crystal Shape
Domed
Flat
Dial Color
Cream
Standard

Movement

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

Pricing

1 specs
MSRP
$299
$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.

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.

Studio Underd0g Full Moon

Owners widely praise the Studio Underd0g Full Moon's harmonious creamy dial and its 37mm case, which fits flawlessly. The innovative sapphire disc with numerals is a highlight, though two visible screws holding it are noted as a minor aesthetic drawback. Some owners find the watch overpriced, while others see value in the upgraded Sellita movement under $1k. Lume is surprisingly good, and the included NATO strap is preferred by some over the leather. Accuracy ranges from +1/+2 seconds per day to about -6 seconds per day. On balance, owners rate the Studio Underd0g Full Moon highly for its versatile dial and well-fitting case at the price point.

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