Introduction This is a Casio G-SHOCK Frogman DW-8200, the second-generation Frogman reference featuring a titanium case back and a navy blue resin case with yellow 'FROGMAN' lettering on the band. The dial carries a round LCD display with a subsidiary analogue depth-meter sub-dial at the upper left, digital time and date readouts, and the red 'FROGMAN' and 'CASIO' text at the lower centre, all behind a mineral crystal. The caseback is stamped 'DW-8200' confirming the reference, with 'TITANIUM' and 'AIR DIVER'S 200M' also engraved, and the piece runs on quartz. Historical / Era context The Frogman was introduced in 1993 as Casio's premier professional diving G-SHOCK, and the DW-8200 series — produced from the mid-1990s — represented a significant step forward by adopting a solid titanium case back for improved corrosion resistance and reduced weight. The DW-8200 is distinctive among first- and second-generation Frogmans for its integrated analogue depth sensor sub-dial, its large protective resin guard structure, and the dual-layer button system with labelled 'SPLIT/RESET' and 'LOG DATA' functions to support dive logging. This navy-and-titanium colourway is among the most sought-after variants by G-SHOCK collectors. Condition The watch is running and keeping good time. The watch was checked running at the time of listing with a fresh battery. Battery life and long-term accuracy are not guaranteed. As a vintage timepiece it may benefit from a service. Case: The navy resin case and band show light surface scuffs and minor marks consistent with previous use; the guard bumpers and lug areas retain good definition. The titanium case back shows light fine scratches on the brushed surface. The star-bit screws are intact and show only light tool marks. Dial: The LCD display is fully legible and all segments are functioning. The red 'FROGMAN' and 'CASIO' text is vivid and the analogue depth sub-dial markings are clear and unaffected. Crystal: The mineral crystal shows light surface scratches visible under direct light, but the display remains clear and readable without obstruction. Movement: The quartz movement is running. The watch is operating through all modes and the digital display is active and responsive. Accessories: No original box or papers are included. Band: the original rubber strap is fitted to the watch. This is a pre-owned watch. Fine hairline scratches and light marks from previous use may be visible under magnification even where they do not show in the photographs. Please review all photographs carefully for the detailed condition. Specifications Brand: Casio Model: FROGMAN Reference: DW-8200 Movement: Quartz (quartz) Case material: Stainless steel Case diameter: approx. 50 mm Dial color: Grey Band: Original rubber strap (fitted) Period: 1990-1999 Accessories: None (watch only) In working order: Yes Timekeeping: keeping good time (checked running with a fresh battery) Closing note The DW-8200 Frogman in this navy/titanium configuration is a genuine icon of 1990s G-SHOCK engineering and remains a cornerstone piece for Frogman and vintage G-SHOCK collectors. Please examine all photographs carefully as they form part of the description. As with all vintage timepieces, please examine the provided photographs carefully to satisfy yourself with the condition before bidding. The watch is sold as a vintage collectible; water resistance and future maintenance are not guaranteed. The item is carefully packed and shipped from Japan with tracking. Import duties, taxes and customs charges are the buyer's responsibility.