Seiko Chronograph 100M - 4T57-00G0 - Quartz - 2000s–2010s - 43mm Seiko Chronograph reference 4T57-00G0, a stainless steel quartz chronograph with a 43mm case and black dial. Powered by the Seiko 4T57 analogue quartz chronograph caliber with 1/10-second timing. The 4T57 is one of Seiko's analogue quartz chronograph calibers, built around a three-register layout — 1/10-second, minute and second counters — with a date window at three o'clock. This generation of Seiko chronographs pairs Japanese quartz reliability with a clean, high-contrast sport-dress dial in a wearable steel case. References such as the 4T57-00G0 are a straightforward entry point into Seiko's modern chronograph line and sit well as a daily steel chronograph. - Movement: Quartz, Seiko caliber 4T57, 1/10-second chronograph - Case: Stainless steel, 43mm excluding crown (caliper 45.4mm includes crown) - Dial: Black, applied baton indices, luminous hands - Crystal: Mineral (Hardlex) — fine surface scratches present - Bracelet: Original Seiko stainless steel bracelet with signed fold-over clasp, approx. 20mm lug width - Functions: Hours, minutes, seconds, date, 1/10-second chronograph (60-minute and 60-second registers) - Water resistance: Rated 100m / 10 ATM as marked — gaskets not freshly tested - Year: ca. 2000s–2010s The watch is in very good overall condition. The dial is clean with sharp printing and intact luminous hands. The bracelet is complete with a signed Seiko clasp. The quartz movement runs and the chronograph resets cleanly to zero. From a private collection. No box or papers. Shipped fully insured, tracked, and signature-required worldwide.