Side by side

Bremont Altitude ChronographvsSeestern S446 GMT

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

Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300
S446 GMT
SeesternS446 GMT
MSRP $299

At a glance

14 of 29 specs differ
Diameter
Altitude Chronograph42mm
S446 GMT39.5mm
Power Reserve
Altitude Chronograph40h
S446 GMT41hh
Water Resistance
Altitude Chronograph100m
S446 GMT100m
MSRP
Altitude Chronograph$6,300
S446 GMT$299

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
42mm
39.5mm
Thickness
14.7mm
13mm
Lug-to-Lug
47mm
Lug Width
14.7mm
20mm
Material
316L Stainless Steel (DLC coated)
316L Stainless Steel

Crystal & Dial

2 specs
Crystal Shape
Flat
Domed
Dial Color
Silver
Cream

Movement

5 specs
Caliber
BE-50AE
Seiko NH34A GMT
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
41hh
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$6,300
$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.

Bremont Altitude Chronograph

Owners note faint marks on the case sides and back, with minor wear and creasing on the strap. Reviewers flag the "DANGER EJECTION SEAT" wordmark on the dial as a divisive design choice that disrupts the MB series' usual stark tone, though they praise the improved smoothness and click precision of the Roto Click rotating bezel. On balance, the Bremont Altitude Chronograph elicits mixed reactions, with design elements like the dial text being a point of contention for 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.

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