Collectors looking for the previous-generation Seamaster Aqua Terra will recognize this 42mm Aqua Terra superclone immediately. Reference 231.10.42.21.03.004 belongs to the pre-2017 Aqua Terra family, running the older but well-regarded caliber platform in a 42mm steel case. The vertical teak pattern on the blue dial distinguishes this generation from the current horizontal-line models, and many enthusiasts actually prefer this orientation for its bolder visual texture.

Build Details

• Reference: 231.10.42.21.03.004
• Case diameter: 42mm
• Dial: blue with vertical teak pattern
• Case material: stainless steel
• Crystal: sapphire
• Bracelet: stainless steel
• Movement: automatic with date at 3 o’clock
• Water resistance: 150 meters

The 150m water resistance rating sits lower than the 300m Diver but remains more than adequate for swimming and daily exposure. The screw-down crown and solid caseback maintain the pressure seal.

What Collectors Notice

The vertical teak lines running from 12 to 6 create a distinctly different wrist presence compared to the current horizontal layout. This older pattern catches light in vertical bands, making the blue dial appear more dynamic when the wrist moves. The date window at 3 o’clock follows the traditional placement, and the applied indices use a simpler geometry than the faceted markers on newer references. These differences matter to collectors who track generational changes across the Aqua Terra lineage. The 41mm 220.10.41 shows what the same collection looks like in its current form. Both options live within the Seamaster family, separated by design era rather than purpose.

This vs Other Versions

Choosing between the 231-series and the current 220-series comes down to aesthetics and case size preference. The 42mm case here wears slightly larger on the wrist, and the vertical dial texture gives the face a more structured, almost architectural appearance. The older bracelet design uses a different link shape that some find more comfortable due to its wider surface area against the skin. For buyers who want Aqua Terra DNA without the latest-generation styling, the 231 series remains a strong option. This 231-series Aqua Terra clone captures that prior-generation character in a configuration that still feels current on the wrist.