- Lug-to-lug
- 52 mm
- Case
- 45 mm
- Thickness
- Not provided
- Lug width
- Not provided
Uses nearly the full wrist width; trying the watch on is strongly recommended.
Compare watches on your wrist
Every watch is drawn at the same scale on a wrist of your flat width, so lug-to-lug overhang, case size, and thickness are visible at a glance. Add watches, adjust the wrist, and copy the link to share the comparison.
Your wrist
Flat wrist width
Drawing every watch on a 54 mm (2.13 in) wide wrist. The same width feeds the fit calculator on every watch page.
/compare?w=seiko%2Fprospex-sumo-spb321j1%2Fspb321j1&wrist=54