Oceanking

Name: Monta Oceanking
Brand: Monta

Premium $1,300+

The Monta Oceanking is a Swiss-made 300m diver, now in its third generation, built around the brand's Monta-branded M-22 caliber (based on Sellita SW300) with 56 hours of power reserve in a 40.5mm / 48mm lug-to-lug stainless steel case. It sells in periodic batch drops at $2,550 and has established itself as one of the stronger-value Swiss dive watches in the sub-$3,000 segment.

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40.5mm

Case

300m

Water res.

12mm

Thick

48mm

Lug-to-lug

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Overview

Brand	Monta
Collection	Oceanking
Category	Dive
Released	2023
Price guide	Premium · $1,300+

Full specification

Specs

Case & dial

Diameter	40.5 mm
Lug-to-lug	48 mm
Thickness	12 mm
Lug width	20 mm
Water resistance	300 m
Crystal	sapphire
Case material	stainless steel
Bezel	unidirectional dive, 120-click, ceramic or aluminum insert
Case back	solid

Movement & furniture

Type	Automatic
Caliber	Monta M-22 →
Functions	Date
Power reserve	56 h
Jewels	25
Lume	Super-LumiNova BGW9
Strap / bracelet	stainless steel bracelet with 6-point micro-adjust clasp

On the wrist

The V3 Oceanking has a composed, tool-watch quality that doesn't announce itself. The flat sapphire reads cleaner than a domed crystal, giving the dial a modern directness that pairs well with the sword hands and stacked applied indices. The case proportions sit in a comfortable middle ground — not imposing on a 6.5-inch wrist, not lost on a larger one — and the bracelet, with genuine female end links and six micro-adjust positions, is noticeably better than what most watches in this category bother with. The black lacquer dial with red text accents gives the ceramic-bezel version a serious, utilitarian character; the blue dial with aluminum insert reads more relaxed and arguably more versatile day-to-day.

The BGW9 lume is consistent but not the brightest in its class, and the bezel's 120 clicks are tactile and even, among the more satisfying in this price tier. The watch skips an exhibition caseback and formal third-party certification, and the micro-adjust clasp has attracted minor durability questions from long-term users who swim in salt water regularly. But for a buyer who wants a clearly considered Swiss diver with real manufacturing investment at a price that doesn't require a justification memo, the Oceanking V3 makes a persuasive case.

Bottom line

A tightly engineered Swiss diver that earns its price through visible finishing quality, a solid proprietary movement, and bracelet execution well above its tier — constrained mainly by a drop-model sales structure that keeps it sold out between releases.

Highlights

300m / 1,000ft water resistance
Monta M-22 (SW300-based), 56h power reserve
Patent-pending 120-click unidirectional bezel
40.5mm / 48mm lug-to-lug
Flat sapphire with 7-layer AR coating

Who it's for

Buyers with wrists in the 6.5–7.5-inch range who want a capable Swiss-made diver that wears neatly and transitions between sport and casual wear, value movement quality and bracelet execution over brand prestige, and are comfortable purchasing from a direct-to-consumer US-based brand that sells in periodic drops.

Who should skip it

Skip it if you need immediate off-the-shelf availability, want an exhibition caseback, require COSC or equivalent independent certification, or prefer a case under 40mm.

Before you buy

All variants sell out quickly in periodic drops — join Monta's newsletter for restock alerts before the next batch
Confirm bezel insert material before ordering: the black dial is listed with a ceramic bezel and the blue dial with an aluminum bezel — affects aesthetics and scratch resistance
Monta lists the case diameter as 40.5mm, lug-to-lug as 48mm, thickness as 12mm, and lug width as 20mm
The bracelet clasp has six on-the-fly micro-adjustment slots

FAQ

Is the Oceanking automatic or quartz?

The Oceanking is automatic. The Monta M-22 winds itself from the motion of your wrist, so it needs no battery. A full wind holds roughly 56 hours, so it keeps running overnight off the wrist; left longer it stops and restarts once you wear or hand-wind it.

What movement does the Oceanking use?

The Oceanking is powered by the Monta M-22 from Monta, an automatic caliber with 25 jewels, a 56-hour power reserve, and a 28,800 bph beat rate. Being automatic, it winds from the motion of your wrist and needs no battery.

Does the Oceanking have a date?

Yes — the Oceanking has a date display on the dial. The date advances automatically as the movement runs, so the current day of the month is always visible at a glance, and you can set it from the crown after the watch has been left to stop.

How water resistant is the Oceanking?

The Oceanking is rated to 300 m. That is a high water-resistance rating: comfortable for swimming, snorkelling and recreational diving, with margin to spare for everyday wear. Whatever the rating, avoid operating the crown or pushers underwater, and have the gaskets checked periodically to keep it reliable.

How big does the Oceanking wear?

At 40.5 mm across with a 48 mm lug-to-lug and 12 mm thick, the Oceanking wears as a modern medium-to-large watch. Lug-to-lug is the measurement that really decides fit, since it sets how far the case spans the wrist — 48 mm suits most wrists, and smaller wrists especially should check that figure.

How does the V3 differ from the earlier V2 Oceanking?

The V3 switches to a flat sapphire crystal and a refreshed, cleaner dial, upgrades the M-22 to 56 hours of power reserve, and refines the bezel to 120 clicks.

Is the M-22 a fully proprietary movement or a modified off-the-shelf caliber?

The M-22 is a Sellita SW300-1 built to Monta's specifications, with a custom rotor and rhodium plating. It benefits from Sellita's established parts ecosystem.

How does the Oceanking compare to similarly priced Swiss divers?

At $2,550 it competes against watches like the Oris Aquis and Christopher Ward C60, offering comparable specifications with arguably stronger bracelet execution; the main trade-off is the drop-model availability versus buying those brands any day from stock.

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