Omega.

Ref. ST 146.011 – 69, Seamaster, Chronograph, Minute and hour counters, Date, So-called "Bullhead", Stainless-steel, NOS (New Old Stock)

Stainless steel, manual-winding, vertical asymmetric shield-shaped with rounded corners, massive pilot’s wristwatch, water-resistant with screwed case-back, 60-minute graduated revolving black inclined inner bezel for the decompression times (setting by the crown at 6 o’clock), brown colour dial with radial luminous indexes, subsidiary seconds at 6 and four horological complications:
• 1/6 second chronograph (activated by the two round-shaped pushpieces located on the top case-band) with orange chronograph hand
• Half-instantaneous three-colour 30-minute counter (subsidiary dial at 3 o’clock)
• Half-instantaneous date of the month (aperture at 3 o’clock)

Two-piece case. Case-back stamped in the centre with the Omega logo, a seahorse and the name “Seamaster”.

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