Montbrillant Olympus ref. B19350: two‑tone steel & 18k gold version with 1461‑day calendar + moonphase (Cal. 19 COSC). 42 mm, sapphire crystal, ~30 m WR.
Montbrillant Olympus ref. B19350: two‑tone steel & 18k gold version with 1461‑day calendar + moonphase (Cal. 19 COSC). 42 mm, sapphire crystal, ~30 m WR.