WatchFitTool

Seiko Watches 44mm & Larger

66 Seiko models in the 44mm and up range, actually measuring 44mm to 51.7mm. Bold, high-presence sizing best on larger wrists.

Thickness barely moves across the group — 13.5mm to 14.7mm — so these wear much alike under a cuff.

49 are round and 17 rectangular — at the same nominal width, a rectangular case covers noticeably more wrist.

Releases run from 2015 to 2023, so this mixes current models with older references.

Which of these fits your wrist?

55.0mm

Roughly a 14.7cm wrist circumference — the measurement a tape gives you. Compared against lug-to-lug where we have it, case width otherwise.

66 of 66 models sit on this wrist without the lugs hanging over the edge.

ModelYour FitWidth
Prospex Sky SSC351P1 Stainless Steel / BlackBalanced5.5mm clear44mm
Prospex Sky SSC347P1 Stainless Steel / BlueBalanced5.5mm clear44mm
Prospex Sky SSC349P1 Stainless Steel / BlackBalanced5.5mm clear44mm
Prospex Sky SSC423P1 Stainless Steel / BlackBalanced5.5mm clear44mm
Prospex Sky SSC419P1 Stainless Steel / BlackBalanced5.5mm clear44mm
Prospex Sky SSC425P1 Stainless Steel / CreamBalanced5.5mm clear44mm
Prospex Sky SSC353P1 Stainless Steel / BlackBalanced5.5mm clear44mm
Prospex Sky SSC421P1 Stainless Steel / BlackBalanced5.5mm clear44mm
Prospex Diver Marinemaster 300 Stainless Steel / Black / BraceletBalanced5.4mm clear44.3mm
Prospex Diver SSC487P1 Stainless Steel / BlackBalanced5.2mm clear44.6mm
Prospex Diver SSC489P1 Stainless Steel / BlueBalanced5.2mm clear44.6mm
Prospex Diver SSC551P1 Stainless Steel / BlueBalanced5.2mm clear44.6mm
Prospex Diver SSC485P1 Stainless Steel / BlueBalanced5.2mm clear44.6mm
Prospex Diver SSC549P1 Stainless Steel / BlueBalanced5.2mm clear44.6mm
Prospex Sky SRPB59K1 Stainless Steel / CreamBalanced5.1mm clear44.7mm
Prospex Sky SRPB57K1 Stainless Steel / BlackBalanced5.1mm clear44.7mm
Prospex Sky SRPB61K1 Stainless Steel / BlackBalanced5.1mm clear44.7mm
Prospex Diver Turtle Thong Sia ExclusiveBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Blue / Bracelet / Save the OceanBalanced5.0mm clear45mm
Prospex Diver Turtle Goldtone / Black / RubberBalanced5.0mm clear45mm
Prospex Sky SSG015P1 Stainless Steel / BlackBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Grey / BraceletBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Black / Black SeriesBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Grey / Bracelet / ZimbeBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Blue Gradient / BraceletBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Blue Lagoon / BraceletBalanced5.0mm clear45mm
Prospex Sky SSC611P1 Stainless Steel / BlueBalanced5.0mm clear45mm
Prospex Sky SSG011P1 Stainless Steel / BlackBalanced5.0mm clear45mm
Prospex Sky SSG013P1 Stainless Steel / BlackBalanced5.0mm clear45mm
Prospex Sky SSC609P1 Stainless Steel / BlueBalanced5.0mm clear45mm
Prospex Sky SSC607P1 Stainless Steel / BlackBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Blue / Bracelet / PadiBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Black / Bracelet / BatmanBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Black / Bracelet / CokeBalanced5.0mm clear45mm
Prospex Diver Trans Ocean Stainless Steel / Black / BraceletBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Green / BraceletBalanced5.0mm clear45mm
Prospex Diver Trans Ocean Stainless Steel / Blue / BraceletBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Black / Rubber / PepsiBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Black / BraceletBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Blue / BraceletBalanced5.0mm clear45mm
Prospex Diver Turtle Stainless Steel / Black / RubberBalanced5.0mm clear45mm
Prospex Diver SBDX014G Titanium / BlackBalanced5.0mm clear45mm
Prospex Land SUN049P1 Stainless Steel / Black / BraceletBalanced4.7mm clear45.6mm
Prospex Land SUN049P2 Stainless Steel / Black / StrapBalanced4.7mm clear45.6mm
Prospex Land SNE421P1 Stainless Steel / Black / BraceletBalanced4.7mm clear45.6mm
Prospex Land SUN061P1 Stainless Steel / Brown / StrapBalanced4.7mm clear45.6mm
Prospex Land SUN053P1 Stainless Steel / Black / StrapBalanced4.7mm clear45.6mm
Prospex Land SNE425P1 Stainless Steel / Black / StrapBalanced4.7mm clear45.6mm
Prospex Land SUN051P1 Stainless Steel / Green / StrapBalanced4.7mm clear45.6mm
Prospex Land SUN059P2 Stainless Steel / Blue / StrapBalanced4.7mm clear45.6mm
Prospex Land SUN047P1 Stainless Steel / Black / BraceletBalanced4.7mm clear45.6mm
Prospex Land SNE423P1 Stainless Steel / Black / StrapBalanced4.7mm clear45.6mm
Prospex Sky SSC261P1 Stainless Steel / BlackBalanced4.4mm clear46.1mm
Prospex Landmaster Stainless Steel / Black / BraceletBalanced4.1mm clear46.7mm
Prospex Diver SUN065P1 Stainless Steel / BlueSweet spot3.8mm clear47.5mm
Prospex Diver SUN019P1 Stainless Steel / BlackSweet spot3.8mm clear47.5mm
Prospex Diver SUN021P1 Stainless Steel / BlackSweet spot3.8mm clear47.5mm
Seiko Prospex Divers Marinemaster 300 Ninja TunaSweet spot3.6mm clear47.7mm
Prospex Sky SSG005P1 Stainless Steel / BlackSweet spot3.6mm clear47.8mm
Prospex Sky SSG003P1 Stainless Steel / BlackSweet spot3.6mm clear47.8mm

Same size, other brands

The middle of this group sits around 45mm. These are the closest matches we hold from other brands — useful when the size is right but the Seiko isn't.