Quartz chronograph from Ronda's Startech line with a 1/10-second register and a big date at 6. Ronda's own caliber page and data sheet could not be read (the site serves a bot check), so the figures come from Caliber Corner, citing Ronda: 12½ lignes, 28.60mm, 4.40mm high, 395 cell, 54 months' claimed battery life (recorded as 4.5 years), hacking, and functions of hours, minutes, small seconds, 1/10 seconds, big date at 6, central chronograph seconds, 30-minute and 12-hour counters. Made as a gold-plated Swiss Made version with 13 jewels and a nickel-plated Swiss Parts version with 6 jewels, so `jewels` is left blank. Worn & Wound's 2014 review of the Astor+Banks Chrono describes the dial layout: small seconds at about 2:30, the 1/10-second register at 6 above the big date, and the 30-minute and 12-hour counters stacked in one subdial at about 9:30, with add/split (intermediate time) timing. Accuracy is not stated. Tier "mid" alongside the other Ronda 5xxx Startech chronographs.
Astor+Banks Chrono