Silva do a version of the button compass used in their Silva S.E.R.E. 40 that has a luminious face and a small hole for a lanyard. I have replaced the compass in both my Ritter kits with it. Recommended. Go to silva.se homepage. follow the bits I copied below.
Startpage > Compasses > SERE 40
The little Escape and Evasion compass that comes in four versions: with or without luminous dial for night navigation and with or without watch strap clip. Print on the back of the compass housing - ( 15 mm or on the compass disc - 9 x 2 mm.
Art.no. 35926-1610 Watch compass 40 luminous
Art.no. 35926-1600 Watch compass 40NL non-luminous
Art.no. 35766-1610 Compass 40 luminous, with lanyard hole
Art.no. 35766-1600 Compass 40NL non-luminous
© Silva Sweden AB -
www.silva.se