Seagull ST1701K Automatic movement hollow bare pendulum 6 o'clock sub seconds speed master Ideal for watchmakers and enthusiasts

Ideal for watchmakers and enthusiasts seeking a reliable foundation for GMT functionality

and hacking functionality

NH35 Rotor Oscillating Weight – Automatic Hammer Rotor Replacement Part

AESOP delivers true mechanical luxury at an accessible level—without compromising quality

Sapphire Crystal: Double arc sapphire glass provides superior scratch resistance and clarity

Seagull ST1701K Automatic movement hollow bare pendulum 6 o'clock sub seconds speed master Ideal for watchmakers and enthusiastsThe Seagull ST17 is a family of mechanical movements manufactured by the Chinese watchmaker, Sea Gull. It is one of the largest mechanical movement producers in the world, and the ST17 has been in production since 2001 . The design is based on its predecessor, the ST16, with key upgrades including jumping hour, big date, and power reserve complications . The ST1701 is a specific variant within the ST17 family. It is an automatic movement that features