- Multicolored leather - Buckle fastening - Compatible with Apple Watch Series 1 through 7 in sizes 38/40mm - Strap lengths: 105mm / 65mm laCalifornienne is an independent watch company and is not authorized, endorsed, sponsored by, associated with and/or affiliated with Apple Inc. Apple Watch & Apple are trademarks of Apple Inc. laCalifornienne's watch straps are third-party products that are compatible for use with your own Apple Watch. We do not sell or include any products made by or authorized by Apple Inc.