Comparing the Steeldive SD1977 and SD1940: Diver vs Pilot Design

Steeldive SD1977 vs Steeldive SD1940


The SD1977 features a design inspired by the famous 6105/8000 Slim Turtle Diver watch, with a classic round case and a unidirectional rotating bezel. On the other hand, the SD1940 has a more vintage pilot watch design, with a larger case and a flieger-style dial.


Both watches are powered by reliable automatic movements. The SD1977 uses a Seiko NH35 movement, known for its accuracy and durability. Meanwhile, the SD1940 is equipped with a Miyota 8215 movement, providing consistent timekeeping performance.


The SD1977 has a water resistance of 200 meters, making it suitable for diving and water sports. It also features a date window and luminous hands and markers for enhanced visibility in low light conditions. On the other hand, the SD1940 is more focused on aviation with its large, easy-to-read dial and a slide-rule bezel for calculations.


While the exact prices may vary, the SD1977 tends to be a more budget-friendly option compared to the SD1940 due to its simpler design and features.


Ultimately, the choice between the Steeldive SD1977 and SD1940 depends on your preference for design and intended use. The SD1977 is a reliable diver's watch with classic styling, while the SD1940 offers a unique pilot watch experience with additional functionality.

Steeldive SD1976P vs SD1940M: In-depth Diver and Pilot Watch Comparison