B-2 B42362 (Two-Tone, Steel & Gold, 43.2 mm)

Breitling B-2 ref. B42362: two‑tone steel and 18k yellow gold case/bracelet, 43.2 mm, sapphire crystal, 100 m WR. COSC Caliber 42 automatic chronograph. Sources: Chrono24 B‑2 two‑tone examples.