Watch Movements

Automatic, manual-wind, quartz, and the calibers powering microbrand watches right now.

The movement is the engine under the dial. It determines how the watch keeps time, how thick the case can be, how expensive servicing will be, how smooth the seconds hand looks, and often how the brand positions the watch in the market.

For microbrands especially, movement choice is strategy. A $400 dive watch does not need a precious Swiss caliber. A slim $1,500 dress watch probably should not use a thick entry-level workhorse if the rest of the watch is trying to feel refined. Context matters.

• Affects price and long-term ownership cost
• Shapes case thickness and design freedom
• Influences serviceability and parts availability
• Changes how collectors perceive the watch

Microbrands almost never manufacture their own movements. Instead they choose proven calibers from established suppliers: Miyota (Citizen, Japan), Seiko/TMI (Japan), Sellita (Switzerland), STP (Swiss, Fossil-backed), and Soprod (Switzerland). Each occupies a distinct position in price, quality, and complexity.

Miyota is owned by Citizen Watch Co. of Japan and is one of the most common movement suppliers in the microbrand world. The movements are reliable, relatively inexpensive, widely available, and easier to source in lower quantities than many Swiss options. That makes them especially attractive to small brands.

The Miyota 8215 and 821A are classic affordable automatic movements used in countless microbrand divers and field watches. They are not luxury movements, but they are tough and inexpensive to service or replace. That combination is exactly what a microbrand needs at the $300–$600 price point.

• Beat Rate: 21,600 vibrations per hour
• Power Reserve: About 40 hours
• 21 jewels
• Automatic with unidirectional rotor
• Does not hack (seconds keeps running when setting time)

The 9-series is Miyota is more refined family and is common in better-spec microbrand watches. These movements beat faster, feel smoother, usually hack and hand wind, and are thinner than many entry-level alternatives. The 9-series also allows brands to design slimmer cases without jumping into Swiss movement pricing.

• 9015: Thin automatic with date — cost-effective alternative to Swiss movements for slim divers and field watches
• 9039: No-date version that avoids a ghost date position — ideal for clean minimalist dials
• 9075 GMT: Independently jumping local hour hand — true traveler GMT behavior at an affordable price

Seiko movements are the other major pillar of the microbrand world. Through Time Module Inc., Seiko sells mechanical and quartz calibers that appear in thousands of independent watches. If you have handled enough affordable microbrand divers, odds are good you have worn something powered by an NH35. It is one of the most important movements in the entire independent watch scene.

The NH35 is not thin, glamorous, or high-beat. What it is, however, is extremely dependable. It hacks and hand-winds, runs at 21,600 vph, and delivers about 41 hours of power reserve. Watchmakers know it inside and out, parts are cheap and plentiful, and it survives real abuse.

• Type: Automatic mechanical
• Beat Rate: 21,600 vibrations per hour
• Power Reserve: About 41 hours
• Features: Hacking and hand winding

The NH38 removes the date function entirely, making it useful for watches where dial symmetry matters — field watches, pilot-style designs, and minimalist pieces where a date window would interrupt the layout.

The NH34 opened the door for affordable GMT microbrand watches. It is generally considered an office GMT or caller GMT because the 24-hour hand is adjusted rather than the local hour hand. That still makes it useful for tracking another time zone, even if frequent travelers may prefer a true GMT.

Seiko is VK-series mecha-quartz movements give brands the look and tactile feel of a mechanical chronograph without the cost and servicing headaches. You get quartz accuracy, a sweeping chronograph seconds hand, and crisp pusher feel.

Why it matters: A mechanical chronograph can be expensive to buy and service. VK-series movements let microbrands build stylish, affordable chronographs that are far easier to own.

Sellita became critical to the modern microbrand market after ETA restricted movement supply outside the Swatch Group. Because Sellita had experience assembling ETA-style movements, it was positioned to become the go-to independent Swiss alternative.

For many microbrands, Sellita provides the magic phrase: Swiss Made. That phrase can materially change how a watch is positioned, priced, and perceived.

The SW200-1 is widely viewed as Sellita is answer to the ETA 2824-2. It runs at 28,800 vph (faster than the Miyota 8215 is 21,600), has 26 jewels, and delivers about 38 hours of power reserve. It is common in premium microbrand divers, field watches, and everyday Swiss automatics. Watchmakers know it, parts are accessible, and it can be regulated to strong accuracy.

• Type: Automatic mechanical
• Jewels: 26
• Beat Rate: 28,800 vibrations per hour
• Power Reserve: About 38 hours

The SW300-1 is Sellita is thinner, higher-end alternative — similar to the ETA 2892-A2. Slimmer construction means brands can use it in more elegant case designs where thickness matters. Best for dress watches, slim field watches, and premium pieces.

The SW500 series is Sellita is counterpart to the Valjoux 7750-style automatic chronograph architecture. Larger, more complex, and typically used in racing watches and pilot chronographs.

STP stands for Swiss Technology Production. It is owned by Fossil Group, but the movements are serious Swiss mechanical calibers, not fashion-watch throwaways. STP occupies a similar space as Sellita: Swiss-made alternatives to ETA-style architecture.

The STP1-11 competes directly with ETA 2824 and Sellita SW200-style movements. Its selling points are Swiss origin, a slightly longer power reserve than some competitors (about 44 hours), and decoration that looks more premium through a display caseback.

• STP1-11: Core automatic — comparable to ETA 2824 / Sellita SW200 positioning
• STP3-13: Hand-wound version for brands that want a manual-winding experience
• STP6-15: Skeletonized option for watches designed to showcase the movement

Soprod does not have the same name recognition as Sellita, Miyota, or Seiko, but it is respected for technically refined Swiss movements. It is often chosen by more established microbrands that want slimmer profiles, better accuracy, and more premium complications.

The Soprod A10 (now often seen as the M100) runs at 28,800 vph with 25 jewels and roughly 42 hours of power reserve. Its thinner profile helps brands create elegant watches with case thicknesses that stay under control.

The Soprod C125 is one of the most important premium GMT options available to microbrands. It offers true GMT functionality — the local hour hand can jump independently while the 24-hour hand remains fixed.

Why this matters: A true GMT is far more convenient when crossing time zones. Instead of resetting the whole watch, you jump the local hour hand forward or backward as you travel. Soprod movements cost more partly because they are not produced at the massive scale of Seiko or Miyota.

The microbrand watch industry exists because these movement suppliers make reliable engines available to smaller companies. Miyota and Seiko keep affordable watches alive. Sellita and STP bring Swiss credibility to boutique brands. Soprod gives higher-end independents the tools to offer refined movements and serious GMT functionality.

When evaluating a microbrand watch, do not just ask, 'What movement is inside?' Ask whether that movement makes sense for the price, case design, complication, and long-term ownership experience. That is where the real value lives.

• Maximum value: Miyota 9-series or Seiko NH-series
• Rugged tool watches: Seiko NH35 and NH38
• Slim designs: Miyota 9015 / 9039, Sellita SW300, Soprod A10 / M100
• Affordable GMT: NH34 (office GMT), Miyota 9075 or Soprod C125 (true GMT)
• Swiss-made positioning: Sellita, STP, or Soprod
• Affordable chronograph: Seiko VK-series; mechanical: Sellita SW500