Every reference with a known width takes the same strap size. Your reference is engraved on the case back or between the lugs at 6 o'clock.
20 mm
Verification: Not yet verified
Attachment: spring bars
38 mm case
Indicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size.
The Isotope Mercury takes a 20 mm strap: all 8 references with a listed width in our database use 20 mm. Check the reference on your case back to be sure.
Isotope Mercury references in our database. Each card says where its width comes from: listed by the maker (linked to the maker's page in the details), two independent sources agree, or listed in our database and not yet verified by us.
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 38 mmDeep green enamelled sunburst dialCase material: Dark Gold PVD-coated 316L stainless steel
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 38 mmGrand feu enamel on sterling silver dialCase material: 316L stainless steel
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 38 mmCream-to-grey cold enamel degrade dialCase material: 316L stainless steel
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 38 mmSilver grey vertical satin dialCase material: 316L stainless steel
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 38 mmStraw marquetry (bespoke) dialCase material: 316L stainless steel
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 38 mmLava Orange grand feu enamel dialCase material: Sandblasted stainless steel, matte black DLC
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 38 mmSpearmint Green grand feu enamel dialCase material: Sandblasted stainless steel
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 38 mmMirror-finished dialCase material: 316L stainless steel
No reference matches.
The Isotope Mercury takes a 20 mm strap: all 8 references with a listed width in our database use 20 mm. Check the reference on your case back to be sure. These widths come from our database and are not yet verified.
From our database, which lists 8 Isotope Mercury references, 8 of them with a listed width. Each reference card says whether the maker lists the width, two independent sources agree on it, or it is not yet verified.
The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.
Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.