




                  OSL490-S – 2025 Optima Collection 
                
 Model: OSL490-S
 Dial: Square case. Precious stones on the bezel.
 Case size: 23mm
 Case material: Stainless steel
 Glass: Mineral Crystal
 Movement: Swiss Made RONDA Normtech CALIBER 763
 Bracelet/strap: Stainless steel metal band, with butterfly clasp, wide 14mm.
 WR: 50 m (5 ATM / 169 ft)
 Functions: Center hour, minute, second at center.
Pairs well with

OSL490-S – 2025 Optima Collection




