Apple Watch Band Dimensions
Series 1, 2, 3 - Narrow: 38mm | Wide: 42mm
Series 4, 5, 6 - Narrow: 40mm | Wide: 44mm
Series 7 - Narrow: 41mm | Wide: 45mm
Groove Watch Band Dimensions
Narrow/Short Length:
257mm or 10.11" Width: 2mm or 3/32"
Narrow/Long Length:
276mm or 10.86" Width: 2mm or 3/32"
Wide/Short Length:
261mm or 10.27" Width: 2mm or 3/32"
Wide/Long Length:
280mm or 11.02" Width: 2mm or 3/32"