Seiko Watch Sizes & Specifications
138 Seiko models with case dimensions. Set your wrist width below to see which of them actually fit before you shop.
Every Seiko model, measured
Set your wrist width and the table tells you where each of the 138 measured models lands — how much clearance you get per side, and which ones hang over the edge. Open a row for its full spec sheet.
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Which of these fits your wrist?
Roughly a 14.7cm wrist circumference — the measurement a tape gives you. Compared against lug-to-lug where we have it, case width otherwise.
138 of 138 models sit on this wrist without the lugs hanging over the edge.
| Model | Your Fit | Width | Offer | |
|---|---|---|---|---|
Prospex Diver Turtle Thong Sia ExclusiveSRPJ51K1 | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Diver 1970 Save the OceanSPB301 | Balanced6.1mm clear | 42.7mm | Check offer | |
Prospex Diver 1970 Mystic LagoonSPB288 | Balanced6.1mm clear | 42.7mm | Check offer | |
Prospex Diver 1970 Scuba Black SeriesSPB257 | Balanced6.1mm clear | 42.7mm | Check offer | |
Prospex Diver 1970 Scuba Helly HansenSBDC181 | Balanced6.1mm clear | 42.7mm | Check offer | |
Prospex Diver 1970 Stainless Steel / Grey - Brown / NATOSPB237 | Balanced6.1mm clear | 42.7mm | Check offer | |
Prospex Diver 1970 Stainless Steel / GreenSPB153 | Balanced6.1mm clear | 42.7mm | Check offer | |
Prospex Diver 1970 Stainless Steel / Blue / BraceletSPB183 | Balanced6.1mm clear | 42.7mm | Check offer | |
Prospex Diver 1970 Stainless Steel / Black / BraceletSPB151 | Balanced6.1mm clear | 42.7mm | Check offer | |
5 Sports Street Style Hard Coating / Brown / NATOSRPD85K1 (aka: SRPD85) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Specialist Style Rose Gold / Black / RubberSRPD76K1 (aka: SRPD76) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Stainless Steel / Blue / BraceletSRPD51K1 (aka: SRPD51) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Street Style Hard Coating / Black - Red / NATOSRPD83K1 (aka: SRPD83) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Street Style Hard Coating / Black - Black / NATOSRPD79K1 (aka: SRPD79) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Suits Style Stainless Steel / Green / MeshSRPD75K1 (aka: SRPD75) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Suits Style Stainless Steel / Red / MeshSRPD69K1 (aka: SRPD69) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Stainless Steel / Black / BraceletSRPD55K1 (aka: SRPD55) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Stainless Steel / Orange / BraceletSRPD59K1 (aka: SRPD59) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Stainless Steel / Black - Gold / BraceletSRPD57K1 (aka: SRPD57) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Stainless Steel / Green - Gold / BraceletSRPD63K1 (aka: SRPD63) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Hard Coating / Black / BraceletSRPD65K1 (aka: SRPD65) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Stainless Steel / Blue / NATOSRPD51K2 (aka: SRPD51) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Suits Style Stainless Steel / Blue / MeshSRPD71K1 (aka: SRPD71) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Specialist Style Hard Coating / Black / RubberSRPD65K3 (aka: SRPD65) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Street Style Hard Coating / Green / NATOSRPD77K1 (aka: SRPD77) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Street Style Hard Coating / Black - Blue / NATOSRPD81K1 (aka: SRPD81) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Stainless Steel / Pepsi / BraceletSRPD53K1 (aka: SRPD53) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Suits Style Hard Coating / Black / RubberSRPD65K2 (aka: SRPD65) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Stainless Steel / Green / BraceletSRPD61K1 (aka: SRPD61) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Suits Style Stainless Steel / Black / RubberSRPD73K2 (aka: SRPD73) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Suits Style Stainless Steel / Black / MeshSRPD73K1 (aka: SRPD73) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Specialist Style Stainless Steel / Black / RubberSRPD55K2 (aka: SRPD55) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Suits Style Stainless Steel / Blue / RubberSRPD71K2 | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Stainless Steel / Black / NATOSRPD55K3 (aka: SRPD55) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Suits Style Stainless Steel / Sand / MeshSRPD67K1 (aka: SRPD67) | Balanced6.3mm clear | 42.5mm | Check offer | |
5 Sports Sports Style Hard Coating / Black / NATOSRPD65K4 (aka: SRPD65) | Balanced6.3mm clear | 42.5mm | Check offer | |
Prospex Diver Turtle Stainless Steel / Blue / Bracelet / Save the OceanSRPD21K1 (aka: SRPD21) | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Diver Turtle Goldtone / Black / RubberSRPC44 | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Diver Samurai Stainless Steel / Dawn GreySRPD03 | Balanced5.6mm clear | 43.8mm | Check offer | |
Prospex Diver SSC613P1 Stainless Steel / BlackSSC613P1 | Balanced5.8mm clear | 43.5mm | Check offer | |
Prospex Diver SSC617P1 Stainless Steel / BlackSSC617P1 | Balanced5.8mm clear | 43.5mm | Check offer | |
Prospex Diver Turtle Stainless Steel / Blue Lagoon / BraceletSRPB11 | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Diver Samurai Stainless Steel / Black / RubberSRPB55 (aka: SRPB55K1) | Balanced5.6mm clear | 43.8mm | Check offer | |
Prospex Diver Samurai Stainless Steel / Black / BraceletSRPB51 (aka: SRPB51K1) | Balanced5.6mm clear | 43.8mm | Check offer | |
Prospex Diver Samurai Stainless Steel / Black / Bracelet / ZimbeSRPC43 (aka: SRPC43K1) | Balanced5.6mm clear | 43.8mm | Check offer | |
Prospex Diver Turtle Stainless Steel / Grey / Bracelet / ZimbeSRPA19 (aka: SRPA19K1) | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Diver SSC618P1 Stainless Steel / BlackSSC618P1 | Balanced5.8mm clear | 43.5mm | Check offer | |
Prospex Diver Turtle Stainless Steel / Black / Black SeriesSRPC49 (aka: SRPC49K1) | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Diver SLA017J1 Stainless Steel / BlackSLA017J1 (aka: SLA017) | Balanced7.6mm clear | 39.9mm | Check offer | |
Prospex Diver SSC615P1 Stainless Steel / BlackSSC615P1 | Balanced5.8mm clear | 43.5mm | Check offer | |
Prospex Diver Turtle Stainless Steel / Grey / BraceletSRPC23 (aka: SRPC23K1) | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Diver Samurai Stainless Steel / Blue / BraceletSRPB49 (aka: SRPB49K1) | Balanced5.6mm clear | 43.8mm | Check offer | |
Prospex Sky SSC611P1 Stainless Steel / BlueSSC611P1 | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Sky SSG011P1 Stainless Steel / BlackSSG011P1 | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Sky SRPB61K1 Stainless Steel / BlackSRPB61K1 | Balanced5.1mm clear | 44.7mm | Check offer | |
Prospex Sky SSG013P1 Stainless Steel / BlackSSG013P1 | Balanced5.0mm clear | 45mm | Check offer | |
Cocktail Time Power Reserve Stainless Steel / PVD Rose / SidecarSSA346J1 (aka: SSA346) | Balanced7.3mm clear | 40.5mm | Check offer | |
Prospex Sky SSC609P1 Stainless Steel / BlueSSC609P1 | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Sky SSC607P1 Stainless Steel / BlackSSC607P1 | Balanced5.0mm clear | 45mm | Check offer | |
Prospex Sky SSG015P1 Stainless Steel / BlackSSG015P1 | Balanced5.0mm clear | 45mm | Check offer |
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The Seiko extremes, ranked
Smallest Seiko Watches
The most compact Seiko models by case width
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Thinnest Seiko Watches
The slimmest Seiko profiles by case thickness
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Seiko SKX007 Black / Stainless Steel13mm thick
Best Seiko for Small Wrists
The smallest footprints — under 46mm top to bottom
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Largest Seiko Watches
The biggest Seiko models for those who want presence
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Prospex Diver SSF001J1 Titanium / Blue48.5mm wide
The ends of the Seiko range
Smallest Seiko
Mechanical Stainless Stainless Steel / Black / Bracelet
38.4mm
Largest Seiko
Prospex Diver SRPA81K1 Stainless Steel / Black
51.7mm
Thinnest Seiko
Mechanical Stainless Stainless Steel / Black / Bracelet
11.2mm thick
Browse Seiko watches by size
Seiko-sized watches from other brands
Seiko centres on 44mm. These are the closest matches we hold elsewhere in the database — one model per brand, same footprint on the wrist.
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Omega
Seamaster Diver 300M Master Co-Axial 43.5 Milano Cortina 2026 Winter Olympics
43.5mm · 14.37mm thick
TAG Heuer
Carrera Chronograph Extreme Sport Titanium - Ceramic / Blue / Bracelet
44mm · 15.1mm thick
Apple
Watch Ultra 3
44mm · 12mm thick
Samsung
Galaxy Watch8 - LTE · 44mm
43.7mm · 8.6mm thick
Amazfit
Active 2
43.9mm · 9.9mm thick
Zenith
Defy Zero G Blue Sapphire / Lapis Lazuli
44mm · 14.85mm thick
Certina
DS Super PH1000M Sea Turtle Conservancy
43.5mm · 14.15mm thick
Noise
NoiseFit Fuse Plus
44mm · 12mm thick