SW330-1

	Brand:	Sellita
	Family:	Sellita SW300 Family
	Height:	4.10 mm
	Jewels:	25
	Reserve:	42 hours
	Frequency:	28,800 A/h
	Winding:	Automatic, Central Rotor Automatic Winding
	Diameter:	25.60 mm (11.5 ligne)
© Sellita Cal. SW300 is a clone of the thin ETA 2892A2	Complications:	24 Hour Hand, Date, GMT Hand, Hacking Seconds, Independently-Adjustable 24 Hour Hand, Quick Date Correction
	Hands:	Central 24 Hour Hand, Central Hour Hand, Central Minute Hand, Central Seconds Hand, Date Window at 3:00

Distinguishing Technical Characteristics
Central-Rotor Automatic Clockwise Balance Cock Screw Regulator Balance, Balance at 12:00
Production: 2015 – Current
1910s	1920s	1930s	1940s	1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s

Sellita Cal. SW330-1 is a thin automatic GMT movement. It is based on Cal. SW300-1, a clone of ETA’s 2892A2. SW330-1 is thus very similar to the ETA Cal. 2893-2.

Sellita SW330 History

Sellita had long produced movements for ETA, and re-sold assembled kits of Cal. 2892-2 and 2893-2 as late as 2008 with ETA branding. The company also specialized in custom finishing of these movements for many Swiss watchmakers. In 2008, Sellita switched to their own-brand SW300 movement family, though most of the components remained identical. The assortment was still sourced from Swatch Group’s Nivarox but the remaining components were transitioned to other suppliers.

Like the SW200 family, Cal. SW300 was updated shortly after introduction with new more durable tooth profiles as well as updated bridges for the reverser wheels. Movements with this update are denoted with the “-1” model number, and non “dash-1” movements are rarely seen. By 2013, Sellita developed a new pallet bridge for the SW300 movements, eliminating a screw and threading of a positioning hole. These components are interchangeable and do not change the movement name.

In 2015, Sellita introduced a clone of ETA’s GMT movement, Cal. 2893-2.

Sellita SW330-1 Applications

Cal. SW330-1 is used as a replacement for ETA’s 2893-2, often without a mention of the supplier change.

• Mühle Glashütte Mühle SW 330-1 (with a woodpecker regulator)
• Oris 798

Sellita SW300 Family

The SW300 family consists of just three movement models with three simple complications: Date wheel, 24 hour hand, and small seconds. These movements are widely used, however, especially Cal. SW300-1, now that ETA has restricted sales of the similar Cal. 2892A2.

Note that Sellita SW300 movements have four more jewels than their ETA 2892-based counterparts.

Manufacturer Link