[Engineering & Tech] Inside the OMEGA Speedmaster Caliber 1152 Chronograph

Analyzing the global price trends and liquidity of the 3513.50. Discover why Mint & Serviced condition from Japan offers the best ROI for collectors.

The micro-mechanical architecture of the OMEGA Speedmaster Date reference 3513.50.00 reflects heavy engineering endurance. This high-end chronograph is powered by the exceptionally robust automatic caliber 1152, built on the legendary Valjoux 7750 integrated chronograph platform. Operating at a high frequency of 28,800 vibrations per hour, the automatic movement features quickset date capabilities and independent sub-dials. The case measures 39mm in diameter with a solid 14mm thickness profile and an 18mm lug width blueprint.

Kinematic Performance and Component Replacement Specifications

The mechanical performance of this caliber 1152 unit has been completely restored to premium operating metrics. Our comprehensive technical service completed in July 2026 involved a total teardown, ultrasonic component washing, and the installation of a brand-new mainspring. The timegrapher results verify a powerful amplitude of 294 degrees with a daily rate of plus three seconds per day and zero beat error. A fresh caseback sealing gasket has been installed to preserve the structural 50-meter water resistance rating.

Materials Integrity and Full-Set Hardware Assembly

The crystal windbreak features an ultra-dense, pure sapphire glass crystal sheet that completely resists everyday abrasions. The steel case body and solid link bracelet weigh 133g in total mass, proving its heavy industrial structural integrity. While unpolished and unserviced private listings carry severe amplitude decay risks, this fully refreshed JDM unit operates with complete structural predictability. It comes equipped with two extra links to seamlessly fit wrist sizes reaching up to 20.3cm.

Authenticity Guaranteed. Invest in historical Swiss engineering validated to original factory operating tolerances.