Side by side

Hamilton Khaki Aviation X-Wind Day Date AutovsSeestern S456 GMT

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

Khaki Aviation X-Wind Day Date Auto
HamiltonKhaki Aviation X-Wind Day Date Auto
MSRP $1,375
S456 GMT
SeesternS456 GMT
MSRP $299

At a glance

16 of 29 specs differ
Diameter
Khaki Aviation X-Wind Day Date Auto45mm
S456 GMT41mm
Power Reserve
Khaki Aviation X-Wind Day Date Auto80h
S456 GMT41hh
Water Resistance
Khaki Aviation X-Wind Day Date Auto100m
S456 GMT200m
MSRP
Khaki Aviation X-Wind Day Date Auto$1,375
S456 GMT$299

Full specifications

Case

8 specs
Category
Pilot
GMT
Diameter
45mm
41mm
Thickness
12.8mm
13mm
Lug-to-Lug
46mm
49mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Water Resistance
100m
200m

Crystal & Dial

2 specs
Dial Color
Green
Sunray style, applied and Diamond cut Indices, C1 lume
Lume
None
C1

Movement

5 specs
Caliber
H-30
Seiko NH34
Beat Rate
28,800 vph
3 vph
Power Reserve
80h
41hh
Jewels
25
24
Complications
None
GMT

Pricing

1 specs
MSRP
$1,375
$299

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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.

Hamilton Khaki Aviation X-Wind Day Date Auto

Owners widely praise the Hamilton Khaki Aviation X-Wind Day Date Auto for its value, technical aesthetic, and versatile wearability with straps. Reviewers and owners alike highlight its excellent legibility, bold Arabic numerals, and the appeal of its pilot watch design, with many appreciating the 80-hour power reserve. Some owners find the crosswind calculation functions unnecessary, and there are mixed views on the dial's font usage and color matching. Lume is frequently noted as weak, and some find the size large or the left-handed crown and pusher setup uncomfortable. Accuracy figures range from gaining 6 seconds in a few days to approximately -6 seconds per day. Overall, owners rate the Hamilton Khaki Aviation X-Wind Day Date Auto highly for its impressive value and functional pilot watch design.

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.

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