Seiko Instruments (SII) caliber VD53B is a 0 jewels quartz chronograph watch movement. The notable feature of this caliber is that it has a central running seconds hands with the chronograph seconds hand located in the subdial at 6:00. This makes the VD53 a good choice for those who want a stop watch timer, but also prefer to see the big seconds hand “ticking”.
You might find this caliber listed as being produced by Hattori aka Epson aka TMI (Time Module Inc) aka Seiko Instruments Inc.
Some of the topics covered in this caliber listing:
TMI spec sheets claim the caliber to have an accuracy rating of less than +/- 20 seconds per month when worn at normal operating temperatures.
Replacement prices at the time of this post were found online in the range of $20-30 USD.
VD53B Technical Drawing:
How to Reset the VD53B Chrono Hand to Zero?
There are many Invicta watches with the caliber VD53, so here are some handy instructions provided by Invicta…
Seiko Holdings Corporation (SEIKO) delegates a large portion of the manufacturing in its watch business to SII and EPSON. Most of watches manufactured by SII are sold through the Seiko Watch Corporation, a subsidiary of Seiko Holdings Corporation. In recent years Seiko Instruments has tried to establish its own marketing channel and brands – Sizukuishi Watch, appetime, J.SPRINGS, ISSEY MIYAKE, tsumori chisato, ALESSI, cacharel, etc.
On January 26, 2009, Seiko Instruments and Seiko Holdings announced that the two companies will be merged on October 1, 2009 through a share swap. Seiko Instruments became a wholly owned subsidiary of Seiko Holdings on October 1, 2009.