Monta M-22

The M-22 designation emerged after a costly early misstep: Monta's founders, who launched the brand around 2016, originally equipped the Oceanking with an Eterna Caliber 39. That movement proved unready for production volumes and nearly sank the company. After consulting Swiss watchmakers, Monta settled on Sellita's SW300-1 — a movement widely regarded as one of the most reliable third-party Swiss automatics available — and labelled it the M-22.

The SW300-1 base is itself a Swiss-made alternative to the ETA 2892-A2, sharing its slim 3.6 mm profile and 25.6 mm diameter but built entirely outside the Swatch Group's supply chain. Sellita later introduced an Optimization Barrel that extended the standard 42-hour reserve to 56 hours; current Monta production uses this upgraded configuration, as confirmed on the brand's own product pages for the Noble, Triumph, and Oceanking.

Monta's version receives a rhodium-plated rotor with a Genève wave finish and the brand's crest. The company tests every watch to a house standard of ±7 seconds per day across five positions — tighter than an unregulated base movement, though short of COSC's ±4 s/day threshold for automatics.

Within the competitive under-$2,000 microbrand segment, the M-22 offers a well-serviced Swiss movement with hacking, hand-winding, and a 56-hour reserve in a 3.6 mm stack — a practical combination that has powered the Noble, Triumph, and Oceanking across several generations without Monta needing in-house movement development.