Inspect the front image for consistent slate-grey embossing and a centered dial layout. The angled case views should show a clean relationship between the brushed bezel surface and polished bevels. Check the matte black strap for even texture and secure seating at both lugs, then confirm the folding clasp closes squarely. Those checks protect the quiet material contrast that makes this exact 5712G-001 useful.
The black strap is the practical choice when you want the moon-phase profile to remain easy to pair with dark tailoring and minimal accessories. Let the dial view establish the cool grey texture, then check the case profile and strap images for a clean transition from steel to matte leather. That sequence makes the decision about the whole wearing line, not just the front color.
If that cool, low-contrast balance is the intended role, the gallery provides enough case, dial, and strap views to make the decision without borrowing a warmer sibling's character.
It is a practical distinction for repeat wear.