Side by side

Seestern S456 GMTvsLongines FLAGSHIP CLASSIC

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

S456 GMT
SeesternS456 GMT
MSRP $299
FLAGSHIP CLASSIC
LonginesFLAGSHIP CLASSIC
MSRP $2,700

At a glance

22 of 29 specs differ
Diameter
S456 GMT41mm
FLAGSHIP CLASSIC30mm
Power Reserve
S456 GMT41hh
FLAGSHIP CLASSIC
Water Resistance
S456 GMT200m
FLAGSHIP CLASSIC30m
MSRP
S456 GMT$299
FLAGSHIP CLASSIC$2,700

Full specifications

Case

9 specs
Category
GMT
Diameter
41mm
30mm
Thickness
13mm
8.7mm
Lug-to-Lug
49mm
47mm
Lug Width
20mm
21mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished
Water Resistance
200m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Sunray style, applied and Diamond cut Indices, C1 lume
Green
Indices
Applied
Lume
C1
None

Movement

7 specs
Caliber
Seiko NH34
L888.5
Beat Rate
3 vph
0 vph
Power Reserve
41hh
0h
Jewels
24
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
GMT
None

Pricing

1 specs
MSRP
$299
$2,700

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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 S456 GMT

Owners widely praise the Seestern S456 GMT for its exceptional value and finishing that exceeds expectations, with one owner noting its accuracy surpasses that of their Seiko 5. The dial displays a pearl-like rainbow effect. Some owners would prefer a bidirectional bezel over the current unidirectional one. The Seestern S456 GMT features an NH34 movement, a 39.5mm case, sapphire crystal, and an adjustable clasp. On balance, owners rate the Seestern S456 GMT highly for its impressive finishing and value proposition at its price point.

From video reviewers

The watch features stunning, detailed finishing that is difficult to top. Reviewers did not reach a consensus on any weaknesses.

Longines FLAGSHIP CLASSIC

Owners widely praise the Longines FLAGSHIP CLASSIC for its quality execution, comfortable dimensions, and value, with many appreciating its classic styling and solid engineer bracelet. The 36mm and 38.5mm variants are considered ideal for a dress watch, offering understated elegance and impeccable finishing. One owner notes a smooth winding feel from the L629.2 movement, while another reports accuracy within +/- 5 seconds per day. However, the polished case is described as a smudge magnet, and the white Roman dial is not universally appealing. The 42-hour power reserve is flagged as a weaker characteristic by one reviewer. On balance, owners and reviewers rate the Longines FLAGSHIP CLASSIC highly for its neo-vintage design and build quality at its price point.

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