PTS Resources

An Asian manufacturer known for their tourbillon calibers
ptsresources.com

ETA

Switzerland’s most dominant supplier of mechanical watch movements
eta.ch

Sellita

A maker of ETA clone movements
sellita.ch

Soprod

A manufacturer of mechanical, as well as advanced quartz, movements
soprod.ch

Miyota

A Japanese manufacturer of quartz & mechanical watch movements
miyotamovement.com

Eterna

Chris is planning to use Eterna’s GMT caliber 3911 & their moonphase complication in the 3955
eterna-movement.com

Eterna Logo

Eterna’s logo is a stylized version of the ball bearing system that the company pioneered for self-winding watches
offhours.show