Smitech™ Grand Heritage: Elite 316L Automatic Skeleton – Midnight Steel Edition

Smitech™ Grand Heritage: Elite 316L Automatic Skeleton – Midnight Steel Edition

Engineering Without Limits.

The Grand Heritage is the definitive flagship of the Smitech™ collection. Engineered for the executive who demands high-performance utility alongside architectural beauty, this timepiece combines a 200m professional-grade waterproof rating with the intricate "Soul of Precision" skeleton dial. Whether in the boardroom or the deep blue, it is an uncompromising statement of technical authority.

The Grand Design

Forged from 316L Surgical Grade Stainless Steel, this model features a robust round silhouette designed for maximum durability. The exhibition skeleton dial allows a front-row view of the mechanical heart, while the integrated Luminous markers ensure the passage of time remains visible in the darkest environments.

Elite Technical Mastery

Calibre-Elite Automatic Movement: A self-winding mechanical engine that captures your kinetic energy, ensuring perpetual motion without the need for batteries.

200M Professional Waterproofing: Engineered with a reinforced pressure-seal system, this model is rated for depths of 200 meters, making it the most durable timepiece in the Smitech™ catalog.

Integrated Calendar Function: A rare complication for skeletonized movements, providing daily utility without sacrificing the architectural aesthetic.

Surgical-Grade 316L Steel: Both the case and the precision-linked strap are crafted from high-density stainless steel for a heavy, substantial feel on the wrist.

High-Visibility Luminescence: Treated with premium luminous pigment on the pointers and indices for flawless low-light legibility.

Technical Specifications 

Smitech™ Professional Care: Maintaining Your 200m Diver-Spec Seal

Your Smitech™ Grand Heritage is a precision-engineered instrument capable of withstanding depths of up to 200 meters. However, maintaining its "Executive Grade" waterproof integrity requires proper handling and routine care.

1. The Golden Rule: Check the Crown

Before any contact with water, ensure the crown (the winding knob) is fully pushed in or screwed down tight against the case.

• Why: The crown is the primary entry point for moisture. If it is pulled out or loose, the internal gaskets cannot form a watertight seal.

2. Operation Under Water

Never pull out the crown or adjust the calendar/time while the watch is submerged or even while it is still wet.

• Pro Tip: Water pressure can force moisture through the seals if they are engaged while the crown is in motion.

3. Post-Saltwater Rinse

If you take your Grand Heritage into the ocean, always rinse it thoroughly with fresh, lukewarm water afterward.

• Why: Salt is highly corrosive. If left to dry, salt crystals can build up around the seals and the rotating bezel, causing them to degrade or jam over time.

4. Avoid the "Steam Trap"

While your watch is rated for 200m, we recommend avoiding hot showers, saunas, or steam rooms. * The Physics: Extreme heat causes the metal case and the rubber gaskets to expand at different rates. This can allow microscopic steam particles to enter the case, leading to fogging under the crystal.

5. Annual Gasket Inspection

For watches used frequently in water, we recommend a professional pressure test and gasket lubrication once every 12–24 months. Rubber seals can naturally dry out over time; keeping them supple ensures the "Soul of Precision" stays dry.