




OSL490-S – 2025 Collection Optima
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 CALIBRE 763
Bracelet/strap: Stainless steel metal band, with butterfly clasp, wide 14mm.
WR: 50 m (5 ATM / 169 ft)
Functions: Centre hour, minute, second at center.
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OSL490-S – 2025 Collection Optima