Side by side

Seestern S446 GMTvsLongines MASTER COLLECTION

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

S446 GMT
SeesternS446 GMT
MSRP $299
MASTER COLLECTION
LonginesMASTER COLLECTION
MSRP $2,850

At a glance

22 of 29 specs differ
Diameter
S446 GMT39.5mm
MASTER COLLECTION40mm
Power Reserve
S446 GMT41hh
MASTER COLLECTION72h
Water Resistance
S446 GMT100m
MASTER COLLECTION30m
MSRP
S446 GMT$299
MASTER COLLECTION$2,850

Full specifications

Case

9 specs
Category
GMT
Diameter
39.5mm
40mm
Thickness
13mm
10.8mm
Lug-to-Lug
47mm
46.8mm
Lug Width
20mm
21mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
100m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Domed
AR Coating
Inner
Dial Color
Cream
Silver
Indices
Applied
Painted Arabic numerals
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
Seiko NH34A GMT
L897.2
Beat Rate
3 vph
25,200 vph
Power Reserve
41hh
72h
Jewels
24
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
GMT, Date
Hours, minutes, seconds, month and date by annual calendar

Pricing

1 specs
MSRP
$299
$2,850

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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.

Longines MASTER COLLECTION

Owners widely praise the Longines Master Collection for its excellent fit and finish, attractive dial aesthetics with engraved numerals and textures, and overall value, particularly for complications like chronographs and moonphases at its price point. Reviewers note the refined design and product quality, with some finding the case appears less thick than its stated height. Owners report a buttery winding feel and appreciate the 72-hour power reserve. However, some owners find the case finishing homogenous and the traditional styling overshadowed by modern trends. Specific models draw criticism for subdial placement cutting off numerals, a lack of bracelet micro-adjustments, uninspiring crown and pushers, and 30m water resistance being on the light side. One owner reported a broken moon phase setting mechanism, while another felt the dial and chapter ring looked cheap.

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