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Seiko Lug Widths & Strap Sizes

Seiko Lug Width & Strap Size

What size watch strap does my Seiko use?

Finding the correct info for your next Seiko watch can be a challenge with so many different resources around the web. What we’ve done at StrapsCo is created the best reference table for Seiko watches. Here you’ll be able to look up your Seiko’s lug width and case size in one convenient place. We’ll tell you accurately the exact strap size you need for your Seiko. Whether it be for Grand Seiko, Seiko 5, Seiko Presage, Seiko Prospex, or one of the many other Seikos on the market, we have the exact specifications of your watch. Read the spec sheet below to find the diameter of your watch case and even explore further into our Seiko lug width & strap size guides. If you’re looking for replacement watch bands for Seiko, we have it all below. Simply look up your Seiko watch by the reference number or model number and click through to check out the guide. If you click on the strap size you’ll be taken to the best selection of replacement Seiko bands in the size you need. Interested in Seiko nicknames? Keep on reading and you may discover a few new ones.

Collection Reference/Model Number Lug Width/Strap Size Case Size
FlightMaster SNA411 “Flighty” 21mm 42mm
Grand Seiko SBGA001 20mm 41mm
Grand Seiko SBGA011 “Snowflake” 20mm 41mm
Grand Seiko SBGA201 20mm 41mm
Grand Seiko SBGA211 “Snowflake” 20mm 41mm
Grand Seiko SBGA283 19mm 40mm
Grand Seiko SBGA285 19mm 39mm
Grand Seiko SBGA387 19mm 40mm
Grand Seiko SBGH267G 19mm 39.5mm
Grand Seiko SBGJ201 “Mt. Iwate” 19mm 40mm
Grand Seiko SBGJ203 19mm 40mm
Grand Seiko SBGM221 19mm 39.5mm
Grand Seiko SBGN003 19mm 39mm
Grand Seiko SBGR053 19mm 37mm
Grand Seiko SBGR305 20mm 40.5mm
Grand Seiko SBGR311 21mm 42mm
Grand Seiko SBGV238 19mm 40mm
Grand Seiko SBGV245 20mm 40mm
Grand Seiko SBGW231 19mm 37.3mm
Grand Seiko SBGW253 19mm 38mm
King Seiko 44-9990 19mm 36mm
King Seiko 4502-7001 18mm 36mm
Presage Cocktail Time SSA439J1 “Blue Acapulco” 20mm 40.5mm
Presage SARY055 22mm 41mm
Presage SPB037 20mm 40mm
Presage SPB079 20mm 44mm
Presage SSRPB41 “Cocktail Time Blue Moon Strap” 20mm 40.5mm
Presage SRPB41J1 “Cocktail” 20mm 40.5mm
Presage SRPB43 “Cocktail Time Skydiving” 20mm 40.5mm
Presage SRPB43J1 “Sky Diving” 20mm 40.5mm
Presage SRPC97J1 “Fuyugeshiki” 20mm 40.5mm
Presage SSA361J1 “Star Bar Starlight” 20mm 40.5mm
Presage SRPB46 20mm 40.5mm
Presage Blue Enamel SPB069 20mm 40mm
Prospex Alpinist SARB017 20mm 39mm
Prospex Marine Master SBDX017 20mm 44mm
Prospex Samurai SRPB09 22mm 43.8mm
Prospex SBBN015 Marine Master Professional 22mm 46mm
Prospex SBDC029 “Shogun” 22mm 44mm
Prospex SBDJ019 22mm 43.5mm
Prospex SBDX011 Marine Master “Emperor Tuna” 22mm 52mm
Prospex Sea Diver SSC617P1 20mm 43.5mm
Prospex SLA017 19mm 40mm
Prospex SNE435 PADI 20mm 43.5mm
Prospex SNE437 20mm 43.5mm
Prospex SNE441 Solar 20mm 43.5mm
Prospex SNE493 20mm 43.5mm
Prospex Solar SNE498 “Tuna” 22mm 47mm
Prospex SPB143 “62MAS” 20mm 40.5mm
Prospex SPB147 20mm 40.5mm
Prospex SPB151 20mm 42.7mm
Prospex SPB189J1 “Shogun” 22mm 43.5mm
Prospex SSC663P1 20mm 42mm
Prospex Turtle SRPB11 22mm 45mm
Prospex SRPB53 “Samurai Blue Waffle” 22mm 44mm
Prospex SRPC91 “Turtle STO” 22mm 45mm
Prospex SRPD23 “Samurai STO Great White Shark” 22mm 43.8mm
Prospex SRPD27 “Black Monster” 20mm 42.4mm
Prospex SSA343J1 “Sky Diving” 20mm 40.5mm
Prospex SSC015P1 20mm 43.5mm
Prospex SSC017 20mm 43mm
Prospex SSC019 20mm 43mm
Prospex SSC021 20mm 43.5mm
Prospex SSC031 20mm 43mm
Prospex SSC081 21mm 42mm
Prospex SSC081P1 21mm 42mm
Prospex SSC673P1 22mm 43.5mm
Prospex SSC701 22mm 43.5mm
Prospex SSC813 20mm 39mm
Prospex SBDC001 “SUMO” 20mm 45mm
Prospex SUN019 “Tuna” 24mm 47mm
Prospex SUN023 “Tuna” 24mm 48mm
Prospex SUN065 “PADI” 24mm 47.5mm
Prospex SZSC003 “Diver Scuba” 21mm 42mm
Prospex SRP777 “Turtle” 22mm 44.3mm
Prospex SBDY085 “Mini Turtle” 20mm 42mm
Prospex SRPC07 “Orange Samurai” 20mm 44mm
Prospex Drive SPB051 20mm 42mm
Prospex Padi SPB71J1 21mm 42mm
Rescraft SNKM97 24mm 43.5mm
Rescraft SNKN01 24mm 43.5mm
Rescraft SNKN37 24mm 43.5mm
Seiko 5 SKN805, SNK807, SNK809 18mm 37mm
Seiko 5 SNK355 18mm 37mm
Seiko 5 SNK793 18mm 37mm
Seiko 5 SNKK27 “Speed Racer” 20mm 38mm
Seiko 5 SNKK87 20mm 38mm
Seiko 5 SNKL15 18mm 38mm
Seiko 5 SNKL23 18mm 38mm
Seiko 5 SNKL41 18mm 37mm
Seiko 5 SNKL43 18mm 37mm
Seiko 5 SNLK23 18mm 38mm
Seiko 5 SNX115 (7S26-0440) 18mm 37mm
Seiko 5 SNX809 19mm 37mm
Seiko 5 SNXJ89 “DateJust” 20mm 37mm
Seiko 5 SNXF05 19mm 37mm
Seiko 5 SNXS73 19mm 37mm
Seiko 5 SNXS73K 20mm 37mm
Seiko 5 SNXS75 18mm 37mm
Seiko 5 SNXS77 19mm 37mm
Seiko 5 SNXS77K 19mm 37mm
Seiko 5 SNXS79 19mm 37mm
Seiko 5 SNXS79K 19mm 37mm
Seiko 5 SNXS79K1 19mm 38mm
Seiko 5 SNZF15 “Sea Urchin” 22mm 41mm
Seiko 5 SNZF15J1 “Sea Urchin” 21mm 41mm
Seiko 5 SNZF17 “Sea Urchin” 22mm 41mm
Seiko 5 SNZF17J1 “Sea Urchin” 22mm 41mm
Seiko 5 SNZF17K1 “Sea Urchin” 22mm 41mm
Seiko 5 SNZH53 “Fifty Five Fathoms” 22mm 42mm
Seiko 5 SNZH55 “Fifty Five Fathoms” 22mm 43mm
Seiko 5 SNZH57 “Fifty Five Fathoms” 22mm 42mm
Seiko 5 SRPE61 20mm 40mm
Seiko 5 SRPC61 “Bottlecap” 20mm 45mm
Seiko 5 6309-7200 “Vintage” 22mm 42mm
Seiko 5 7009 “Vintage” 20mm 37mm
Seiko 5 Sports SARZ005 20mm 41mm
Seiko 5 Sports SNKE57 18mm 41mm
Seiko 5 Sports SNZG13 22mm 42mm
Seiko 5 Sports SNZG15 22mm 42mm
Seiko 5 Sports SNZG15J1 22mm 42mm
Seiko 5 Sports SPRPD51K1 22mm 42.5mm
Seiko 5 Sports SRPD51 22mm 42.5mm
Seiko 5 Sports SRPD79 22mm 42.5mm
Seiko SportsMatic Weekdater 6619-8010 19mm 37mm
Seiko SXK SKC007 26mm 42mm
World Time 6117-6400 20mm 41mm
7002 22mm 42mm
2205-0760 “Lady Diver” 16mm 33mm
4006-7000 19mm 40mm
6138-0011 “UFO” 19mm 44mm
6138-0011 “UFO” 20mm 44mm
6138-0030 “Kakume” 18mm 43mm
6138-0040 “Bullhead” 20mm 44mm
6138-3000 “Jumbo” 19mm 42mm
6138-7000 “Calculator” 19mm 44mm
6139-6002 “Pogue” 19mm 41mm
6309-7040 22mm 45mm
6309-7290 22mm 41mm
6309-729A 22mm 41mm
7548 “Vintage” 22mm 42mm
7A28-7029 20mm 37mm
7T32-TC60 19mm 39mm
7T34-6A09 “Flightmaster” 20mm 40mm
SARB033 20mm 38mm
SARB035 20mm 38mm
SARB065 “Cocktail Time” 20mm 40mm
SBDY023, SRPC95J, SRPC95K “Turtle Nemo” 22mm 45mm
SGF204 20mm 40mm
SKA371 “BFK” 20mm 40mm
SKX007 22mm 42.5mm
SKX009 22mm 42.5mm
SKX009 “Pepsi Diver” 20mm 42mm
SKX013 20mm 37mm
SKX031 (7S26-0040) “Submariner” 22mm 39mm
SKX173 22mm 41mm
SKX779 “Black Monster” 20mm 42mm
SKX781, SKX781J, SKX781K “Orange Monster” 20mm 43mm
SKXA35 22mm 42mm
Skyliner 6102-8000 18mm 37mm
SNA413 Flightmaster 21mm 42mm
SNAF09 Chronograph 18mm 42mm
SND219 (7T92-0CC0) 19mm 39mm
SND253 20mm 41mm
SNE039 Solar 20mm 37mm
SNE107 Solar 20mm 42mm
SNE109 Solar 20mm 42mm
SNE331 Solar 22mm 43mm
SNE497 22mm 47mm
SNJ025 “Arnie” 22mm 47.8mm
SNKE51 20mm 39mm
Spork 20mm 44mm
Sportura 20mm 44mm
SRP313 “Monster Dracula” 20mm 42mm
SRP315 “Orange Monster” 20mm 42mm
SRP483 “Baby Monster” 22mm 39mm
SRP499 “Stargate” 22mm 43mm
SRP583 “Black Ion Monster” 20mm 42mm
SRP637 “Baby Tuna” 22mm 46.5mm
SRP775 “Turtle” 22mm 45mm
SRP777 “Turtle” 22mm 45mm
SRPA21 “Turtle PADI” 22mm 45mm
SRPA21, SRPE99, SBDY017 “Turtle PADI” 22mm 45mm
SRPA29 20mm 42mm
SRPA81 “Tuna” 22mm 51.7mm
SRPA83 “Padi” 22mm 51.7mm
SRPD45, SRPD45K1, SRPD45K “Turtle Sea Grapes Okinawa” 22mm 45mm
SSC667 “Recraft” 22mm 43.5mm
SSC669 “Recraft” 22mm 43.5mm
SUP250 18mm 18mm
SUP880 23mm 28.4mm
SXDA20 “Velatura” 26mm 45mm