I am looking at mine and it has screws to take out the straps. Where to get a replacement is another story. I thought I saw someone posted online and it was made by some company in UK and they still have spares.
1978 Honda CX500
2003 Honda S2000 with Greddy Turbo.
2005 Lotus Elise # 39 + LETSLA V2
2007 Honda Pilot ( SOLD )
2011 EVO GSR
2014 Mazda CX-5 GT ( Zoom Zoom )
Sekonda was the manufacturer.. They have spare crowns, backs, glass and orange brake cover, but no spare straps. The designs were sent back to Lotus and destroyed as Lotus, rumour has it, we're being hassled from Lotus, the watch manufacturer,for using their name on the watch. There are no spare internals either.
I can provide contact details for Sekonda and their model reference for they The Type 1, if required.