Originality and symmetry of bevels and edge sharpness are critical when assessing vintage Nautilus cases. The case on your 3700/1 shows signs of life (scratches, dings), but crucially, it hasn’t been overpolished like the bracelet. This is a positive, as MSTANGA often emphasizes avoiding overly restored examples. The contrast between case and polished bracelet is actually useful—it shows the case retains some original geometry.