Side by side

Bremont MBIIvsSeiko Prospex Sea

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

MBII
BremontMBII
MSRP $5,400
Prospex Sea
SeikoProspex Sea

At a glance

14 of 29 specs differ
Diameter
MBII43mm
Prospex Sea42mm
Power Reserve
MBII40h
Prospex Sea72h
Water Resistance
MBII100m
Prospex Sea300m
MSRP
MBII$5,400
Prospex Sea

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
43mm
42mm
Thickness
13.3mm
Lug-to-Lug
48.6mm
Lug Width
22mm
20mm
Material
Titanium (DLC coated)
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
BE-36AE
6R54
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$5,400

Follow this matchup

Get a note when Bremont MBII vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Bremont MBII

The Bremont MBII is praised for its striking, high-tech pilot's watch aesthetic, reassuring heft, and quality feel, featuring an anti-shock system and customizable barrel. Owners note its condition can be excellent with minor hairlines, and it is presented with all original boxes and papers. A drawback cited is its 38-hour power reserve compared to newer movements. Overall, owners and reviewers consider the Bremont MBII affordable and a good representation of the brand.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent value, solid build, and comfortable wearability, with specific mentions of its matte black dial, excellent lume, and cushion case that wears smaller than its dimensions suggest. The 4R36 movement is noted for hacking and hand-winding capabilities, and the bezel action is described as smooth and precise. Some owners find the watch to be a legitimate tool with a fair price, while others describe it as big, thick, and heavy, uncomfortable for smaller wrists, though this is subjective as one owner found the size perfect. The solar quartz movement is also highlighted as a collection-worthy feature. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional value and comfortable, classic design.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.