• Chronographs
• 1930s
• Reference 2403
• Reference 2403 -- Beveled Case -- Sector Dial

Reference 2403 -- Beveled Case -- Sector Dial

Reference 2403 — Beveled Case; Sector Dial (Black)

Reference 2403 with beveled case and black sector dial

Reference 2403 — Beveled Case; Sector Dial (White)

Reference 2403 with beveled case and white sector dial