Omega Seamaster Planet Ocean 600M 600M-217-30-42-21-01-003
The Omega Seamaster Planet Ocean 600M 600M-217-30-42-21-01-003 takes a 21 mm watch band.

Omega · Seamaster Planet Ocean 600M
- Lug width
- 21 mm
- Reference
- 600M-217-30-42-21-01-003
- Family
- Seamaster Planet Ocean 600M
- Model
- Seamaster Planet Ocean 600M 600M-217-30-42-21-01-003
Bands that fit
Cut and stitched in Milano, in the width this watch takes.
Sizing notes
- Any 21 mm band fits this reference, in leather, rubber or fabric.
- 21 mm is an odd size: most ready-made bands are made in even widths, so this reference needs one cut to measure or a band that runs in odd sizes. Why some watches take odd sizes →
- 21 mm is not a common size: only 2,956 of the 41,485 watches measured take it (7.1%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 21 mm →
Other Seamaster Planet Ocean 600M references
Same lug width, other Omega lines
- Constellation Master Chronometer Small Seconds 34 Stainless Steel / Silver / Bracelet131.10.34.20.02.001
21 mm - Constellation Master Chronometer Small Seconds 34 Stainless Steel / Blue - Diamond / Bracelet131.10.34.20.53.001
21 mm - Constellation Master Chronometer Small Seconds 34 Stainless Steel / Silver131.13.34.20.02.001
21 mm - Constellation Master Chronometer Small Seconds 34 Stainless Steel / Blue - Diamond131.13.34.20.53.001
21 mm - Constellation Master Chronometer Small Seconds 34 Stainless Steel / Sedna Gold / Brown - Diamond / Bracelet131.20.34.20.63.001
21 mm - Constellation Master Chronometer Small Seconds 34 Stainless Steel / Sedna Gold / Brown - Diamond131.23.34.20.63.001
21 mm
Matte Black Alligator Strap
Matte Dark Gray Alligator Strap
Millennium Green Alligator Strap
Grey Hammered Leather Strap with Ecru Stitching
Hammered Calfskin Strap Light Blue