Side by side

Monta OceankingvsSeiko Prospex LX line

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

Oceanking
MontaOceanking
MSRP $2,550
Prospex LX line
SeikoProspex LX line
MSRP $6,500

At a glance

14 of 29 specs differ
Diameter
Oceanking40mm
Prospex LX line44.8mm
Power Reserve
Oceanking40h
Prospex LX line72h
Water Resistance
Oceanking305m
Prospex LX line300m
MSRP
Oceanking$2,550
Prospex LX line$6,500

Full specifications

Case

6 specs
Diameter
40mm
44.8mm
Thickness
15.7mm
Lug-to-Lug
48mm
50.9mm
Lug Width
22mm
Material
Stainless Steel
Titanium
Water Resistance
305m
300m

Crystal & Dial

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

Movement

4 specs
Caliber
Monta M-22
5R65
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Jewels
25
30

Pricing

1 specs
MSRP
$2,550
$6,500

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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.

Monta Oceanking

Owners and reviewers widely praise the Monta Oceanking for its refined aesthetics, excellent fit and finish for its price point, and comfortable, supple bracelet with a micro-adjustment clasp. The watch features a legible dial with enlarged luminous markers and hands, a well-done glossy and deep bezel, and a svelte sub-41mm case with a shorter lug-to-lug. Some owners note minor gripes with bezel alignment and movement accuracy, while one reviewer found the tapering crown tricky to grip and the bezel had slight play. The Sellita SW300 movement provides a power reserve of either 42 or 56 hours, depending on the source, and the watch includes a date at six o'clock. Overall, owners and reviewers rate the Monta Oceanking highly for its comfortable wearability and tool-focused, sportier stance.

Seiko Prospex LX line

Owners widely report the Seiko Prospex LX line's finishing is a step up from other models, with a case that sits well on the wrist, and some praise the green sunburst dial with blue anti-reflective sapphire crystal as phenomenal. However, owners note the high MSRP limited sales, with some desiring smaller cases and a reduced price, and others experienced quality control issues such as detached second hands and peeling DLC coating, leading to concerns about fragility. On balance, owners feel the Seiko Prospex LX line was discontinued due to pricing that alienated its target market, despite its attractive dial.

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