Side by side

Hamilton Jazzmaster Seaview AutovsSeestern S446 GMT

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

Jazzmaster Seaview Auto
HamiltonJazzmaster Seaview Auto
MSRP $945
S446 GMT
SeesternS446 GMT
MSRP $299

At a glance

14 of 29 specs differ
Diameter
Jazzmaster Seaview Auto37mm
S446 GMT39.5mm
Power Reserve
Jazzmaster Seaview Auto42h
S446 GMT41hh
Water Resistance
Jazzmaster Seaview Auto100m
S446 GMT100m
MSRP
Jazzmaster Seaview Auto$945
S446 GMT$299

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
37mm
39.5mm
Thickness
11.3mm
13mm
Lug-to-Lug
46mm
47mm
Lug Width
18mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Crystal Shape
Flat
Domed
Dial Color
White
Cream

Movement

5 specs
Caliber
2824-2
Seiko NH34A GMT
Beat Rate
28,800 vph
3 vph
Power Reserve
42h
41hh
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$945
$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 Jazzmaster Seaview Auto

Owners widely praise the Hamilton Jazzmaster Seaview Auto for its attractive design and comfortable wearability when paired with aftermarket straps like sailcloth. Accuracy varies, with one owner reporting gains of 15 seconds per day after seven years of wear, which improved to +/- 4 seconds per day after servicing and case replacement. Another user noted finish issues after minimal wear, questioning the material quality. The Hamilton Jazzmaster Seaview Auto is available with a 45mm stainless steel case, sapphire crystal, 300m water resistance, and an ETA 2824-2 movement, with prices around $500. On balance, owners value the Hamilton Jazzmaster Seaview Auto for its aesthetic appeal and strap versatility, though material durability can be a concern for some.

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.

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