Seiko 4S27 Movement Details

Seiko caliber 4S27 is an automatic (with hand winding) watch movement produced from around 2003 until 2007.

Sub-brands: Brightz
Power reserve:50 hours
Accuracy:+25/-15 seconds/day (Seiko "C" standard)
Day / date?Day + date
GMT / world time?No
Rate:28,800 bph
Number of jewels:28
Notes:Has a retrograde day display. The same as cal. 4S27 but without the higher grade finishing.
Related movements: 4S77