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PTS Resources LTD Caliber PTS Z2031

Pts Resources Caliber Z 2031 Z2032

Manufacturer PTS Resources Limited
Caliber Number PTS Z2031
Movement Type Automatic, self-winding mechanical
Diameter 33.6mm
6mm thick
Beat Rate / Frequency
21,600 bph / 3 Hz
Lift Angle
Unknown (needs confirmed)
Hand Count
Functions Central hours; central minutes; open balance wheel and small seconds at 6:00; dual time subdial at 9:00; day/night indicator at 12:00
Hacking Seconds?
Other Features
Double barrels
Country of Manufacture Made in China
Known Models
Ingersoll caliber 416 watches, Archetype Rogue Automatic, Invicta Reserve Mammoth (Add your watch to the comments below…)

PTS Resources caliber Z2031 (Shandong Liaocheng Zhong Tai Watch Company?) is a semi-skeletonized automatic watch movement with 22 jewels and a frequency of 3 Hz (21,600 beats per hour). This caliber is made in China. There is a similar caliber Z2032.


The Z2031 is a multi-function automatic movement with an open balance wheel at 6:00, second time zone (dual time) subdial at 9:00 and a day/night (sun/moon) indicator at 12:00.

How to set the dual time?

The dual time subdial is a true second time zone indicator and is set independently by turning the crown backwards in time setting mode. When you turn the main time backwards, the dual time hands will also move. When the dual time subdial is set to the desired time, you can then proceed to move the main hands forward to the correct time.

How to set the moonphase?

There is no moonphase on this movement. It is a day/night indicator aka sun/moon indicator.

How to set the day/night indicator?

The day/night indicator follows the time set on the central hours/minutes. In other words, it is set automatically depending on the main time and cannot be set independently.

Double Barrel:

The PTS caliber Z2031 features double barrels (two mainsprings). Although this is a feature used to get more power reserve out of a watch movement, PTS Resources does not list the power reserve in their tech information.

Additional Resources:

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Jon Mall
Jon Mall
1 year ago

Svalbard Watches uses the “PTS Resources 5833” automatic movement, in at least two of their watches, the Expedition FL44 and the Noonday FL17.

1 year ago

this is a z2031

1 year ago

Brand: IngersollCollection Name: The JazzModel #: I07702Case Material: Stainless SteelCase Thickness: 15.5 mmCase Diameter: 42 mmBezel: FixedMovement: AutomaticCaliber: LiaoCheng Z2031Crystal: MineralDial Color: Silver

1 year ago
Reply to  Kripal

I wonder if the Jazz model of Ingersoll could be fitted with small seconds hand on the 6 oclock exposed mechanism. Apparently, it doesn’t have at the moment.

1 year ago

This calibre is used in earnshaw longitude series

6 months ago

This caliber is used in Carl von Zeyten watches (CvZ)

John Fitzpatrick
John Fitzpatrick
2 months ago

How do you set the secondary time on the Z-2031 movement. It’s an Invicta 53mm Mamouth watch.

1 month ago

Nobody knows, lol

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