A valuable SEIKO QUARTZ 200m (6458-6020) day-date specification vintage diver's watch. This model, manufactured in Japan in 1985, is a rare piece among Seiko's quartz divers. It is a successor to the 6458-6000, with a very short production period of only about 1-2 years, making it a rare model with few in circulation. Furthermore, this model was developed during the transition to the successor 7C43-6010, and a major feature is that the waterproof performance has been improved from 150m to 200m by using a screw-down structure for the glass windshield. The glass surface has been replaced with a new one and is in a clear, scratch-free condition. In recent years, Seiko's vintage divers have been re-evaluated worldwide, and it is a popular genre with rising popularity and market prices. Among them, this model 6458-6020 is highly rare due to its short production period, and it may become even more difficult to obtain in the future. The condition is very good, and it is a piece that can be confidently recommended for everyday use as well as for collection purposes. Instant purchase without comments is also welcome. Please consider this opportunity. ■Brand: SEIKO ■Model Number: 6458-6020 ■Operating Status: Normal ■Movement: Quartz ■Dial Color: Black ■Material: Stainless Steel ■Face: W 38mm (excluding crown) x H 42mm (including lugs) ■Band: New Jubilee bracelet (SS) (approx. 17cm at shipment, maximum 20cm possible) ■Crown: Operable normally ■Bezel: Operates normally ■Bezel Insert: Original (with scratches, vintage feel) ■Windshield: Replaced with new mineral glass, no scratches ■Condition: Overall in beautiful condition, but with minor scratches. Polished and cleaned. ■Returns are not accepted for any reason, such as differences in image or size. *Please note that no claims or returns are accepted. *Initial defects are covered by warranty. Please check the profile. ■Battery: New, December 2025 ■Included: Watch, spare band links, link adjustment tool (box not included) ■Notes: *Due to being a 40-year-old vintage diver's watch, it is water-resistant for daily life, but we do not recommend using it in places with high water pressure.