Produced 1948–early 1980s for RAF and other air forces. 36 mm steel case, anti-magnetic soft-iron inner cage, manual-wind Cal. 89. Military fixed bars and tritium dial.
Produced 1948–early 1980s for RAF and other air forces. 36 mm steel case, anti-magnetic soft-iron inner cage, manual-wind Cal. 89. Military fixed bars and tritium dial.