Omega Speedmaster Mark IV 176.0012

Omega Speedmaster Mark IV 4.5 Automatic Chronograph | Ref. 176.0012 | Caliber 1045

Basic Info Listing code : Q3C811 Brand : Omega Model : Speedmaster Mark IV Reference number : 176.0012 Movement : Automatic Case material : Steel Bracelet material : Steel Year of production : Unknown Condition : Used (Good) Scope of delivery : No original box, no original papers Gender : Men's watch/Unisex Location : United States of America, New York, New York Price : 2,595 [Negotiable Availability : Item is in stock Caliber Movement : Automatic Caliber/movement : 1045 Base caliber : Lemania 5100 Power reserve : 48 h Number of jewels : 17 Case Case material : Steel Case diameter : 42 x 45 mm Water resistance : Not water resistant Bezel material : Steel Crystal : Mineral Glass Dial : Black Dial numerals : No numerals Bracelet/strap Bracelet material : Steel Bracelet color : Steel Clasp : Fold clasp Clasp material : Steel Functions Chronograph, Date, Weekday Other Product safety : Show information The Omega Speedmaster Mark 4.5 (ref. 176.0012) is a vintage automatic chronograph that blends classic 1970s design with modern (for its era) mechanical reliability. It uses the robust Caliber 1045 (Lemania-5100 based) automatic movement, delivering day/date, 24-hour indication, and chronograph functionality. Though unofficially dubbed “Mark 4.5” by collectors, the 176.0012 pairs the case style of the earlier Mark IV with the automatic movement of later Speedmasters — giving it a unique place in the Speedmaster lineage. Technical Data • Reference: 176.0012 / ST 176.0012 • Movement: Automatic — Caliber 1045 • Functions: Hours, minutes, small seconds, day, date, 24-hour indicator, chronograph, tachymeter. • Case Material: Stainless steel • Case Size: 42.0 mm • Dial: Black • Crystal: Mineral glass • Bracelet / Strap: Stainless steel bracelet • Water Resistance: Not Guaranteed on Vintage Watches