Seiko [EXC+5] SEIKO SBBW005 AGS KINETEC 5M23-6A20 First mode... for $379 for sale from a Seller on Chrono24
Seiko 5M23 Movement Details –– Mizeni
Navitar NMV-5M23, 5 mm, 2/3 in. format (Ø 11 mm image circle), C-Mount Visible to NIR Lens, f/# 2.8, M.O.D. 100 mm, filter thread M40.5 x 0.5 with Manual Focus, Manual Iris and Locking Screws
Seiko Kinetic 5m23 72 Hours Indicator Watch for Parts & Repair – Vintage Radar
SOLD Seiko AGS Scuba Titanium 5m23-6b40 $150 | Wrist Sushi - A Japanese Watch Forum