Not sure what strap size your watch needs? Pick your model to get its exact lug width (18, 20 or 22mm) and a set of compatible NATO, leather and rubber straps. The golden rule: match the strap width to the lug width exactly.
1. Pick your watch (or enter the lug width)
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Frequently asked
How do I know my watch strap size?
Strap size is the lug width: the gap between the lugs where the strap attaches, measured in millimetres. Common sizes are 18, 20 and 22mm. Measure the gap with a ruler or caliper, or look it up by model. Buy a strap in exactly that width, do not size up or down.
What is the most common watch lug width?
20mm is the most common lug width, followed by 22mm on larger dive and sports watches and 18mm on smaller or dressier pieces. Always match the strap width to the lug width exactly.
Can I put a NATO strap on any watch?
Almost any watch with standard spring bars, as long as you buy the NATO in the correct lug width. A NATO passes under the case, so on watches with fixed lug bars (some dive watches) you may need a single-pass or specific fit.
Dig deeper
Reference data
| Watch | Lug / strap width |
|---|---|
| Akribos XXIV | 22mm |
| Anne Klein AK/1019WTRG | 14mm |
| Anne Klein White Ceramic Diamond-Accent | 16mm |
| Anne Klein Women’s AK/1019WTWT Diamond-Accented Watch with Ceramic Bracelet | 16mm |
| Anne Klein Women’s Genuine Diamond Dial Bracelet Watch | 14mm |
| Apple Watch Series 11 [GPS 42mm] Smartwatch with | 20mm |
| Apple Watch Series 6 | 20mm |
| Apple Watch Series 7 | 22mm |
| Apple Watch Series 7 (GPS + Cellular, 41mm) Midnight Aluminum Case with Midnight Sport Band, Regular (Renewed) | 20mm |
| Bell & Ross BR V2-93 GMT Blue Watch BRV293-BLU-ST/SST | 20mm |
| Bering Ceramic 11435-754 | 16mm |
| BERING Women’s Watch Quartz Movement – Ceramic Collection with Stainless Steel/Ceramic and Sapphire Glass 11429-XXX Bracelet Watches – Waterproof: 3 ATM, Silver/White, 29 (EU), Bracelet | 14mm |
| Breda Virgil | 18mm |
| Bulova Aerojet Classic | 20mm |
| Bulova American Clipper | 20mm |
| Bulova Classic Sutton Automatic Skeleton Dial Brown Leather | 20mm |
| Bulova Devil Diver Oceanographer Black Rubber Strap Watch | 20mm |
| Bulova LED Computron D-Cave Special Edition Black IP | 20mm |
| Bulova Lunar Pilot Chronograph | 20mm |
| Bulova Marc Anthony Marine Star White Ceramic | 22mm |
| Bulova Marine Star 98B250 | 22mm |
| Bulova Marine Star chronograph | 22mm |
| Bulova Men’s Classic Dress 3-Hand 21- jewel Automatic Watch, 42 Hour Reserve, Hack Feature, Sub-second Hand, Open Aperture Dial, Exhibition Case Back, 42mm | 20mm |
| Bulova Men’s Classic Sutton 3-Hand 21-Jewel Automatic Watch, 42 Hour Power Reserve, Skeleton Dial, Luminous Hands, 100M Water Resistant, 43mm | 20mm |
| Casio – A500WGA-1D – Vintage – Unisex Watch – Digital Quartz – LCD Dial – Gold Plated Steel Strap | 18mm |
| Casio A168WA-1 | 18mm |
| Casio Edifice EQB-1000 | 22mm |
| Casio G-Shock Full Metal GMW-B5000 Gold | 22mm |
| Casio G-Shock G-Lide | 18mm |
| Casio G-Shock GA-2100 (CasiOak) | 21mm |
| Casio G-Shock GWF-A1000C-1AJF FROGMAN Bluetooth Solar Radio Watch | 24mm |
| Casio G-Shock MR-G MRGB5000D Titanium | 22mm |
| Casio G-Shock MT-G MTG-B3000 | 22mm |
| CASIO G-Shock MUDMASTER Mens Japan Import GWG-1000-1A3 | 26mm |
| Casio G-Shock Rangeman | 22mm |
| Casio G-Shock X-Large Display Stealth Watch | 22mm |
| Casio GLX5600 Surf Tide Watch | 19mm |
| Casio MDV106-1AV 200M Black Dive Watch (MDV106-1A) | 22mm |
| Casio Men’s EF527D-1AV "Edifice" Stainless Steel Multi-Function Watch | 22mm |
| Casio Men’s GG-1000-1A5CR G Shock Analog-Digital Display Quartz Beige Watch | 24mm |
| Casio Oceanus Manta OCW-S400 | 22mm |
| Casio Pro Trek Manaslu PRX-8000YT-7 | 24mm |
| Casio Pro Trek PRW-2500R-1CR | 22mm |
| Casio Vintage A168WG-9 | 18mm |
| Casio Vintage Digital (A158) | 18mm |
| Citizen Automatic Tsuyosa Sport Luxury Watch | 20mm |
| Citizen Classic Peyton 3-Hand Eco-Drive Watch | 20mm |
| Citizen Eco-Drive Calendrier Moonphase BU0054-52L | 21mm |
| Citizen Eco-Drive Chandler Field Watch | 20mm |
| Citizen Eco-Drive Gold-Tone Dress | 20mm |
| Citizen Eco-Drive Sport Casual Brycen Chronograph Watch | 22mm |
| Citizen Eco-Drive Sport Luxury PCAT Chronograph Watch in | 22mm |
| Citizen Men’s Eco-Drive Weekender Garrison Field Watch in Stainless Steel, Black Dial, Arabic Markers, Luminous, 43mm (Model: AW0050-82E) | 22mm |
| Citizen Men’s Promaster Air Skyhawk Eco-Drive Pilot Watch | 23mm |
| Citizen Promaster Diver BN0151-09L | 20mm |
| Citizen Promaster Mechanical Diver NB6021 | 20mm |
| Citizen Promaster Sea Eco-Drive Stainless Steel Watch | 20mm |
| Citizen Silver Leaf Lacquer NB1060 | 21mm |
| Citizen Sport Casual Garrison 3-Hand Day/Date Eco-Drive Nylon | 22mm |
| Citizen Tsuyosa NJ0152-51X | 20mm |
| Citizen Unisex Eco-Drive Modern Stiletto Watch in Stainless Steel, Silver-Tone Dial (Model: AR3110-52E) | 20mm |
| Daniel Wellington Petite Melrose 28mm Watch | 12mm |
| Festina Swiss Made F22002/4 Steel Chronograph Watch with | 20mm |
| Fossil Grant Chronograph | 22mm |
| Fossil Grant Sport Automatic | 22mm |
| Fossil Machine Chronograph | 22mm |
| G-Shock GMWB5000GD-1, Black, Strap | 22mm |
| Garmin Forerunner 945 | 22mm |
| Garmin Instinct 2 | 22mm |
| Garmin Instinct 2 Solar Surf Watch | 22mm |
| Garmin Instinct 2 Solar, Tactical-Edition, Rugged Outdoor Watch with GPS, with Solar Charging Capabilities, Built for All Elements, Multi-GNSS Support, Tracback Routing and More, Coyote tan | 22mm |
| Garmin Instinct 2X Solar | 26mm |
| Garmin Instinct Solar | 22mm |
| Garmin Tactix 7 | 26mm |
| Garmin vívoactive 3, GPS Smartwatch Contactless Payments Built-in Sports Apps, Black/Slate | 20mm |
| Hamilton Jazzmaster Open Heart | 20mm |
| Hamilton Khaki Field Khaki Quartz Men’s Watch, 38mm Stainless Steel Case, Swiss Made, Black Dial Analog Wrist Watch for Men, 50m Waterproof, Sapphire Crystal, Textile Strap | 20mm |
| Hamilton Khaki Navy Automatic | 20mm |
| Invicta Men’s 1090 Russian Diver | 26mm |
| Invicta Men’s 33809 Reserve Automatic Multifunction Black Dial Watch | 26mm |
| Invicta Men’s Pro Diver Collection Coin-Edge Automatic Watch | 20mm |
| Invicta Pro Diver 8929 Gold-Tone | 20mm |
| Invicta Pro Diver 8929OB | 20mm |
| Invicta Women’s 1644 Angel Jelly Fish Crystal Accented White Dial Watch | 18mm |
| Junghans Max Bill Quartz Analog Watch for Men, 38mm Stainless Steel Case, Calfskin Leather Strap, Water Resistant 30M – White/Tan | 18mm |
| Lotus Watch Multifunction Stainless Steel Case Silver Stainless | 20mm |
| Luminox Navy SEAL 3500 series | 23mm |
| Luminox Navy SEAL 3500 Series | 23mm |
| Luminox Original Navy SEAL 3001 | 22mm |
| Luminox Original Navy SEAL 3502 | 22mm |
| Mido Ocean Star 200 | 21mm |
| Movado Bold Ceramic White 3600528 | 20mm |
| MRGB2000 | 24mm |
| Nixon Base Tide Pro | 24mm |
| ORIENT ‘Bambino Version IV’ Japanese Automatic Stainless Steel and Leather Dress Watch | 21mm |
| Orient Bambino Open Heart | 21mm |
| Orient Bambino Version 2 | 21mm |
| Orient Bambino Version 2 Automatic Dress Watch (Model: | 21mm |
| Orient Bambino Version 4 | 21mm |
| ORIENT Kamasu Stainless Steel Japanese-Automatic Diving Watch | 22mm |
| Orient Mako-3" Automatic/Hand-Winding 200m Diver Style Watch | 22mm |
| Orient Sun & Moon | 22mm |
| Pagani Design Automatic Watch PD-1679 Ceramic Bezel Waterproof | 20mm |
| Peugeot 2051GBK | 20mm |
| Rado Centrix White Ceramic Diamonds | 14mm |
| Rado True Thinline White Ceramic | 18mm |
| Raymond Weil Freelancer automatic | 21mm |
| Raymond Weil Toccata | 19mm |
| Relic Round Automatic | 22mm |
| Seiko 5 SNK366 Gold-Tone Automatic | 18mm |
| Seiko 5 SNK381K1 | 18mm |
| Seiko 5 SNK809 | 18mm |
| Seiko 5 SNKL48 | 19mm |
| SEIKO 5 Sports Automatic Black Dial Watch SRPD57K1 | 22mm |
| Seiko 5 Sports GMT SSK003 | 22mm |
| Seiko 5 Sports SRPD (SKX successor) | 22mm |
| Seiko Coutura Moon Phase Solar SSG010 | 21mm |
| Seiko Men’s SRPG35 Watch, Black Dial, 41-Hour Power Reserve, Stainless Steel Case, Nylon Strap, Water-Resistant | 20mm |
| Seiko Prospex “Arnie” SNJ025 | 22mm |
| Seiko Prospex Arnie Urban Safari Solar Sports Diver’s 200M Watch SNJ031P1 | 22mm |
| SEIKO Prospex Automatic Black Dial Men’s Watch SPB117J1 | 20mm |
| SEIKO Prospex Automatic Green Dial Men’s Watch SPB121J1 | 20mm |
| Seiko Prospex King Samurai Diver’s 200m Automatic Sports Watch SRPH43K1 | 22mm |
| Seiko Prospex LX SNR041 | 21mm |
| SEIKO PROSPEX Marine Master Professional Divers Mechanical Self-Winding Core Shop Exclusive Model Watch Men’s SBDX038 | 20mm |
| Seiko Prospex Samurai SRPB51 | 22mm |
| SEIKO PROSPEX SBDC141 [Diver Scuba 1965 Mechanical Divers Modern Design Men’s Nylon Band] | 20mm |
| Seiko Prospex SNE573 | 20mm |
| Seiko Prospex Turtle SRPF03 | 22mm |
| Seiko SBDC205 Prospex Divers 1965 Heritage PADI Special | 20mm |
| SEIKO SNKP27 Automatic Watch for Men – Recraft Series – Brown Leather Strap, Day/Date Calendar, 50m Water Resistant, Green Dial, and 41 Hour Power Reserve | 22mm |
| Seiko SNP128P1 Premier Brown Watch | 21mm |
| SEIKO SRPB41 Automatic Watch for Men – Presage Cocktail Time – Patterned Blue Dial with Date Calendar – Stainless Steel Bracelet, 50M Water Resistant | 20mm |
| SEIKO SRPE37 Automatic Dive Watch for Men – Prospex Collection – White Dial, LumiBrite Hands, Magnified Date Calendar – 200M Water Resistant | 22mm |
| Seiko SUP880 | 19mm |
| Spinnaker Dumas Men’s Watch | 22mm |
| Suunto Core All Black | 24mm |
| Suunto Core Alpha Stealth | 24mm |
| Swatch Big Bold | 22mm |
| Swatch Sistem51 automatic | 20mm |
| Timex Analogue Watch Q Reissue with Stainless Steel | 18mm |
| Timex Deep Water 44mm Watch | 22mm |
| Timex Easy Reader Gold-Tone | 18mm |
| Timex Expedition North Field Post Solar Watch | 20mm |
| Timex Expedition Scout | 20mm |
| Timex Men’s Ironman Triathlon Classic 100 44mm Watch – Black & Silver-Tone Case Yellow Accents with Black Resin Strap | 18mm |
| Timex Men’s Marlin Automatic 40mm Watch – Silver-Tone Dial & Case with Brown Genuine Leather Strap | 20mm |
| Timex Men’s Marlin Sub-Dial Automatic 39mm Watch – Brown Strap Silver-Tone Dial Stainless Steel Case | 20mm |
| Timex Weekender | 20mm |
| Tissot Bellissima | 14mm |
| Tissot Carson Premium Gent Moonphase | 19mm |
| Tissot Excellence 18K Gold Automatic | 19mm |
| Tissot Le Locle Powermatic 80 | 19mm |
| Tissot Le Locle Powermatic 80 | 19mm |
| Tissot PRX Powermatic 80 316L Stainless Steel case | 22mm |
| Victorinox INOX | 21mm |
| Vostok Amphibia | 18mm |
| Womens Ceramic Quartz Dress Watches for Ladies (Gold) | 16mm |
Daniel Hart is the editor of Watch The Watch. He researches and writes the site’s buying guides, brand comparisons, and explainers, focused on accessible, enthusiast-level watches — affordable automatics, divers, field and dress watches, everyday quartz, and the straps, winders and tools that go with them. The goal is practical, budget-aware advice that helps readers choose the right watch for their wrist and their budget. Recommendations draw on manufacturer specifications and the wider enthusiast community.