Grail Watch Reference

A Reference Library for Watches from Grail Watch

  • Movement Database
  • Grail Watch Blog
  • Reference Documents
    • 1979 Citizen Movement Table
    • Seiko Blue Book Automatic Movement Chronology
    • Seiko Laurel Brochure
    • Seiko List of Basic and Derivative Calibres
  • About Grail Watch

Connect

  • Email
  • Facebook
  • Instagram
  • Twitter

Powered by Genesis

You are here: Home / Movements / SW330-1

SW330-1

Last Update: June 4, 2019

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

This promotional image was widely seen when Sellita introduced the SW300 family in 2008

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.

CalibreETA
Equivalent
JewelsComplications
SW300
SW300-1
ETA 2892A225Date
SW330-1ETA 2893-225Date and 24 Hour Hand
SW360-1ETA 2895-231Date and Small Seconds
Images are taken from official publications and are used here for commentary and educational purposes. Copyright is held by the original owner as noted.
Manufacturer Link

Related Posts

ETA 2893-2

AS 5008

Zenith 693

Zenith 682

Zenith 685

ETA 2893-1