Genuine Rolex® 1030 fourth wheel, part 6910 (see all calibres in description) o-ring case back gaskets 90 mm (thick) flat mineral

90 mm (thick) flat mineral crystal with black trim and white numbers “TACHOMETER”

Hand dimensions are 120/70/17/26 (hour/minute/sweep second/retrograde & indicators)

Hard cover with 152 pages and hundreds of full colour photographs and illustrations

400 Day Clock Suspension Unit 28C can be identified in the Horolovar 400- Day Repair Guide

and the indicator at the 12 o'clock position is a stop watch minute hand

Genuine Rolex® 1030 fourth wheel, part 6910 (see all calibres in description) o-ring case back gaskets 90 mm (thick) flat mineralGenuine Rolex fourth wheel, part 6910, Fits calibres: Rolex 1030 Rolex 1035 Rolex 1036 Rolex 1036 GMT Rolex 1040 Rolex 1055 (CD1) Rolex 1055B (CD1) Rolex 1065 * Perrin Supply Ltd is independent of and not affiliated with or sponsored by Rolex. Rolex warranty does not apply to parts supplied by Perrin Supply Ltd.