Seiko 5M23 Movement Details

Seiko calibre 5M23 is a kinetic (formerly AGS) watch movement. Production was in the 1990s.
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Sub-brands:	Sports 150, Landmaster
Battery:	3023.5MY (replaces 3023.5MZ, 3029.111 and 3029.113) / (Rechargeable lithium-ion capacitor)
Accuracy:	±15 seconds/month
Day / date?	Day + date
GMT / world time?	No
Chronograph?	No
Hacking?	Yes
Rate:	32,768 Hz
Number of jewels:	6
Size / diameter:	27.0mm
Height:	4.3mm
Notes:	The same as cal. 5M22 but with a day display (as well as date). This movement was used in the first Seiko Landmaster watch (SBBW005 / 5M23-6A20) in 1993.
PDF guides:	Instruction manual for Landmaster watch (English & Japanese) Technical guide : 5M22A & 5M23A
Related movements:	5M22

Watches with this movement

Stem code:	351651 (tap 11)
Date wheel code:	878672 (white on black)
Screw codes:	022247, 022490 (screw for oscillating weight)