Seiko Caliber PC32A

Manufacturer	Seiko Instruments Inc. (SII)
Caliber Number	PC32, PC32A
Movement Type	Quartz
Lignes	10.5”’
Diameter	23.7mm
Casing Diameter	18.10mm
Height	4.15mm thick
Jewels	0
Battery Cell Number	SR626SW
Quartz Type	Tuning fork
Frequency	32,768 Hz (cycles per second)
Driving System	2 pole step motor
Accuracy Rating	See below…
Stem	0354-3000 (354300), 354128 (old)
Hand Sizes	1.20mm / 0 .70mm / 0.17mm
Functions	Central hours; central minutes; central seconds; date at 3:00 (or between 4:00 and 5:00 depending on the watch design)
Hacking Seconds?	Yes
Country of Manufacture	Japan
Known Models	Android Aragon Ladies Watch (Too many to list, add your watch in the comments below…)

The Seiko caliber PC32A is a quartz movement is made in Japan. It is a 0 jewels movement with 3 hands and a date.

You may see this movement listed under Seiko, SII (Seiko Instruments), Hattori, or Epson. Learn more here.

The caliber number is located one of the metal pieces going across the movement:

Accuracy:

Time Module Inc. claims that the caliber PC32A will maintain accuracy of: “Less than 30 seconds per month at normal temperature range.”

Battery Replacement:

The battery in the PC32A is a cell number 377 aka SR626SW. It is held in place with a friction arm. Gently (read again, gently) pry the battery up and out (carefully prying back the friction arm if needed). Insert the new battery in the opposite order.

Here is a macro shot of the battery slot and the text at the bottom:

Replacement Price:

Replacement prices of this watch movement were found online in the range of $8.95.

Caliber Drawings:

Watches with this movement:

The PC32A example pictured below was found in an Android (Aragon) ladies watch. Please add your watch in the comments below…

Date/Factory Codes?

Between the manufacturer name and the caliber number is a group of scrambled letters and numbers. This is likely either a date code or factory code. If anyone has insight into this, please comment below. The two examples shown on this page are:

• UM5N
• VH5N

Additional Resources:

• TMI PC32A tech sheet (pdf)