Seiko Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited EditionvsYema Navygraf FSM Bronze

The Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition is praised for its retro design, balanced 42mm case, good finishing, and sapphire crystal. It is powered by the calibre 8R48, featuring a column wheel and vertical clutch, and offers 100m water resistance. Some find its 45-hour power reserve short compared to modern alternatives, and the date window placement is a point of discussion. The solar-powered variant is noted for its compact proportions and character, though some desire thinner cases and improved bracelet micro-adjustment. Overall, owners and reviewers appreciate the SPEEDTIMER's vintage-inspired aesthetics and solid build, with critiques focusing on power reserve and minor functional details.

Owners praise the Yema Navygraf FSM Bronze for its wearable 38.5mm bronze case and comfortable, high-quality parachute strap. The in-house YEMA2000 movement is noted as a positive. The watch features a glossy black dial with elongated markers and hands coated in Super-LumiNova, powered by the YEMA2000 calibre with a 42-hour power reserve, regulated to -/+ 10 seconds per day. Overall, owners rate the Yema Navygraf FSM Bronze highly for its comfortable wearability and the quality of its strap and in-house movement.