the indicator at the 6 o'clock position records both 1/20 seconds or small seconds and the indicator at the 9 o'clock position records minutes
Cortebert 408
Locking handles apply even pressure
brand of headband magnifiers
Lemania® Hands HD-LEM28
Tissot® Case Tube Friction (Crown side is not threaded), part number is T358.054 or T358006798, see all case numbers in description LeCoultre® 461 the indicator at the 6Tissot Case Tube Friction (Crown side is not threaded), part number is T358. 054 or T358006798, see all case numbers in description Standard waterproof case tube, friction into the case 1. 50 mm, accepts a regular waterproof crown with an opening 1. 60 mm, total length 2. 90 mm. Fits Tissot case numbers: C212, C225, C230, C290, D340, D341, D390, D391, L380, L386, L390, L490, L730, L740, L840, L950, L951. Tissot part number is T358. 054 or T358006798