Side by side

Seestern S446 GMTvsGrand Seiko SLGH017

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

S446 GMT
SeesternS446 GMT
MSRP $299
SLGH017
Grand SeikoSLGH017
MSRP $10,500

At a glance

14 of 29 specs differ
Diameter
S446 GMT39.5mm
SLGH01740mm
Power Reserve
S446 GMT41hh
SLGH01780h
Water Resistance
S446 GMT100m
SLGH017100m
MSRP
S446 GMT$299
SLGH017$10,500

Full specifications

Case

5 specs
Category
GMT
Dress
Diameter
39.5mm
40mm
Thickness
13mm
11.7mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Titanium

Crystal & Dial

3 specs
Crystal Shape
Domed
Flat
AR Coating
Inner
Yes
Dial Color
Cream
Black

Movement

5 specs
Caliber
Seiko NH34A GMT
9SA5
Beat Rate
3 vph
28,800 vph
Power Reserve
41hh
80h
Jewels
24
25
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$299
$10,500

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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.

Grand Seiko SLGH017

Grand Seiko SLGH017 owners and reviewers widely praise its impeccable finishing on the applied markers and handset, and its lightweight titanium case and bracelet. The high-beat 9SA5 movement is noted for its approximately 80-hour power reserve, with accuracy figures reported by owners ranging from +4 sec/day to +5 to -3 seconds per day, though some owners express concerns about accuracy deviating significantly from specifications. Some find the "Night Birch" dial stunning and appreciate the Evo 9 case design, while others note the dial texture appears less pronounced on its matte black surface and criticize the handset's proportions and lack of lume. The Grand Seiko SLGH017 is priced at €10,500. On balance, owners and reviewers rate the Grand Seiko SLGH017 highly for its lightweight titanium construction and impeccable finishing.

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